Compositions comprising a polymer

Abstract

A composition comprising a polymer is provided. The composition comprises a polymer represented by Formula 1, a non-aromatic amine compound represented by Formula 2, and a solvent: <Formula 1>#imgabs0#<Formula 2>(Z) o . The substituents in Formula 1 and Formula 2 can be understood as described in connection with the specific embodiments.

Description

[0001] This application claims the priority and benefit of Korean Patent Application No. 10-2020-0013732, filed with the Korean Intellectual Property Office on February 5, 2020, the entire content of which is incorporated herein by reference. Technical Field

[0002] Embodiments relate to a composition including a polymer, an intermediate layer manufactured from the composition, and a device including the intermediate layer. Background Art

[0003] Compared with devices in the art, light-emitting devices are self-emitting devices having a wide viewing angle, high contrast, short response time, and excellent characteristics in terms of brightness, driving voltage, and response speed.

[0004] An example of a light-emitting device may include a first electrode disposed on a substrate, and a hole transport region, an emission layer, an electron transport region, and a second electrode sequentially disposed on the first electrode. Holes provided from the first electrode may move toward the emission layer through the hole transport region, and electrons provided from the second electrode may move toward the emission layer through the electron transport region. Charge carriers such as holes and electrons recombine in the emission layer to generate excitons. These excitons transition from an excited state to a ground state, thereby generating light.

[0005] When manufacturing a light-emitting device using a vacuum deposition method, the manufacturing cost increases due to the use of a vacuum system, and when manufacturing pixels for natural color display using a shadow mask, it is challenging to manufacture high-resolution pixels.

[0006] In contrast, when manufacturing a light-emitting device using a solution coating process such as inkjet printing, nozzle printing, screen printing, or spin coating, the manufacturing process is simple, the manufacturing cost is low, and relatively high resolution can be achieved compared to using a shadow mask.

[0007] Materials for a hole transport layer for a solution coating method include substituents that improve solution solubility. After applying the hole transport layer, the emission layer should be applied on the hole transport layer by using a solution process again. During the solution process for forming the emission layer, the upper portion of the hole transport layer should not dissolve in the solution for the emission layer. To ensure solvent resistance, the solubility may be reduced by substituting a crosslinking group in the hole transport layer and performing thermal crosslinking, or substituents having solvent resistance may be designed. There is a prior art in which a low molecular weight material is added during application of the hole transport layer to increase mobility. However, solvent resistance is not described in the prior art. Summary of the Invention

[0008] There is provided an intermediate layer in which dissolution resistance is ensured, a composition including a polymer for manufacturing the intermediate layer, and a device including the intermediate layer.

[0009] Additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosed embodiments.

[0010] According to one aspect, there is provided a composition including:

[0011] a polymer represented by Formula 1;

[0012] a non-aromatic amine compound represented by Formula 2; and

[0013] a solvent.

[0014] <Formula 1>

[0015]

[0016] <Formula 2>

[0017] (Z) o

[0018] In Formula 1,

[0019] X is represented by Formula 1-1, Y is a substituted or unsubstituted phenylene group,

[0020] a is from about 0.3 to about 0.7, b is from about 0.7 to about 0.3, and the sum of a and b is 1,

[0021] In Formula 2,

[0022] Z is a substituted or unsubstituted C 3 -C 60 carbocyclic group (wherein Z does not include moiety), and o is an integer of 2 or greater,

[0023] <Formula 1-1>

[0024]

[0025] In Formula 1-1,

[0026] X 1 is a substituted or unsubstituted phenylene group, and

[0027] c is an integer of 2 or greater, and

[0028] In Formula 1 and Formula 1-1,

[0029] R 1 、R 2 and Ar1 to Ar 3 are each independently selected from hydrogen, deuterium, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 1 -C 10 heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 6 -C 60 aryloxy, substituted or unsubstituted C 6 -C 60 arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-P(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) and -P(=O)(Q 1 )(Q 2 ),

[0030] from substituted C 3 -C 60 carbocyclic group, substituted C 1 -C 60 alkyl, substituted C 2 -C 60 alkenyl, substituted C 2 -C 60 alkynyl, substituted C 1 -C60 Alkoxy, substituted C 3 -C 10 Cycloalkyl, substituted C 1 -C 10 Heterocycloalkyl, substituted C 3 -C 10 Cycloalkenyl, substituted C 1 -C 10 Heterocycloalkenyl, substituted C 6 -C 60 Aryl, substituted C 6 -C 60 Aryloxy, substituted C 6 -C 60 Arylthio, substituted C 1 -C 60 At least one substituent selected from heteroaryl, substituted monovalent non-aromatic condensed polycyclic groups, and substituted monovalent non-aromatic condensed heteropolycyclic groups is selected from:

[0031] Deuterium (-D), -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl and C 1 -C 60 Alkoxy,

[0032] All are substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -S(Q 11 ), -P(Q 11 )(Q 12 ), -Si(Q 11 )(Q 12 )(Q 13)、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 ) and -P(=O)(Q 11 )(Q 12 ) selected from at least one of C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl and C 1 -C 60 Alkoxy,

[0033] C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 heteroaryl, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group,

[0034] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -S(Q 21 ), -P(Q 21 )(Q 22 ), -Si(Q 21 )(Q 22 )(Q 23 ), -N(Q 21 )(Q 22 ), -B(Q 21 )(Q 22 ), -C(=O)(Q 21 ), -S(=O) 2 (Q 21 ) and -P(=O)(Q 21 )(Q 22 ) selected from at least one of C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group and monovalent non-aromatic fused heteropolycyclic group, and

[0035] -S(Q 31 ), -P(Q 31 )(Q 32 ), -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

[0036] Among them, Q 1 to Q 3 、Q 11 to Q 13 、Q 21 to Q 23 and Q 31 to Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl and terphenyl,

[0037] The molecular weight of the compound represented by Formula 1 is greater than or equal to about 50,000,

[0038] The molecular weight of the compound represented by Formula 2 is less than or equal to about 10,000, and

[0039] *, *' and *" each represent a binding position to an adjacent atom.

[0040] According to one aspect, there is provided a method for manufacturing an intermediate layer, the method comprising:

[0041] Providing a composition onto a substrate and drying the composition at a temperature of about 150 °C to about 300 °C.

[0042] In an embodiment, the method further comprises drying the composition for about 1 minute to about 2 hours.

[0043] According to one aspect, there is provided an intermediate layer, the intermediate layer comprising:

[0044] A polymer represented by Formula 1; and

[0045] A non-aromatic amine compound represented by Formula 2.

[0046] According to one aspect, there is provided a light-emitting device including:

[0047] a first electrode,

[0048] a second electrode facing the first electrode, and

[0049] an intermediate layer disposed between the first electrode and the second electrode,

[0050] wherein the intermediate layer includes a light-emitting layer and a layer containing a composition.

[0051] In an embodiment, the first electrode is an anode, the second electrode is a cathode, and the intermediate layer further includes a hole transport region and an electron transport region. The hole transport region is disposed between the first electrode and the light-emitting layer and includes at least one selected from the group consisting of a hole injection layer, a hole transport layer, a buffer layer, and an electron blocking layer. The electron transport region is disposed between the light-emitting layer and the second electrode and includes at least one selected from the group consisting of a hole blocking layer, an electron transport layer, and an electron injection layer.

[0052] According to one aspect, there is provided an electronic device including a thin-film transistor and a light-emitting device, wherein the thin-film transistor includes a source electrode, a drain electrode, an active layer, and a gate electrode, and the first electrode of the light-emitting device is electrically connected to one of the source electrode and the drain electrode of the thin-film transistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The above and other aspects, features, and advantages of certain embodiments disclosed will become more apparent from the following description taken in conjunction with the drawings, in which:

[0054] Figure 1 is a schematic cross-sectional view of the structure of a light-emitting device according to an embodiment. DETAILED DESCRIPTION

[0055] Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals always refer to like elements. In this regard, the embodiments may have different forms and should not be construed as limited to the description set forth herein. Accordingly, the embodiments are described below only by referring to the drawings to explain the described aspects.

[0056] As used herein, the term "and / or" includes any combination and all combinations of one or more of the associated listed items. For example, "A and / or B" can be understood to mean A, B, or A and B. The terms "and" and "or" can be used in the conjunctive sense or the disjunctive sense and can be understood to be equivalent to "and / or".

[0057] For purposes of its meaning and interpretation, the phrase "at least one of" is intended to include the meaning of "at least one selected from the group consisting of". For example, "at least one of A and B" can be understood to mean A, B, or A and B. When the term "at least one of" is placed after a list of elements, it modifies the entire list of elements, rather than an individual element of the list.

[0058] Taking into account the measurements being discussed and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system), "about" or "approximate" as used herein includes the stated value and represents an acceptable deviation from the particular value as determined by a person of ordinary skill in the art. For example, "about" can mean within one or more standard deviations, or within ±20%, ±10%, or ±5% of the stated value.

[0059] A composition according to one aspect of the disclosure includes a polymer represented by Formula 1, a non-aromatic amine low molecular weight compound represented by Formula 2, and a solvent:

[0060] <Formula 1>

[0061]

[0062] <Formula 2>

[0063] (Z) o 。

[0064] In Formula 1,

[0065] X can be represented by Formula 1-1, and Y can be a substituted or unsubstituted phenylene group,

[0066] a can be from about 0.3 to about 0.7, b can be from about 0.7 to about 0.3, and the sum of a and b can be 1,

[0067] In Formula 2,

[0068] Z can be a substituted or unsubstituted C 3 -C 60 carbocyclic group (wherein Z does not include moiety), and o can be an integer of 2 or greater,

[0069] <Formula 1-1>

[0070]

[0071] In Formula 1-1,

[0072] X 1 can be a substituted or unsubstituted phenylene group,

[0073] c can be an integer of 2 or greater,

[0074] In Formula 1 and Formula 1-1,

[0075] R 1 、R 2 and Ar 1 to Ar 3 can each independently be selected from hydrogen, deuterium, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 1 -C 10 heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 6 -C 60 aryloxy, substituted or unsubstituted C 6 -C 60 arylsulfanyl, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-P(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) and -P(=O)(Q 1 )(Q 2 ),

[0076] From the substituted C 3 -C 60Carbocyclic group, substituted C 1 -C 60 Alkyl group, substituted C 2 -C 60 Alkenyl group, substituted C 2 -C 60 Alkynyl group, substituted C 1 -C 60 Alkoxy group, substituted C 3 -C 10 Cycloalkyl group, substituted C 1 -C 10 Heterocycloalkyl group, substituted C 3 -C 10 Cycloalkenyl group, substituted C 1 -C 10 Heterocycloalkenyl group, substituted C 6 -C 60 Aryl group, substituted C 6 -C 60 Aryloxy group, substituted C 6 -C 60 Arylthio group, substituted C 1 -C 60 At least one substituent selected from heteroaryl groups, substituted monovalent non-aromatic condensed polycyclic groups, and substituted monovalent non-aromatic condensed heteropolycyclic groups may be selected from:

[0077] Deuterium (-D), -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazone group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group and C 1 -C 60 Alkoxy group;

[0078] All are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazone group, C 3 -C 10 Cycloalkyl group, C 1 -C 10 Heterocycloalkyl group, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60At least one selected from heteroaryl, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -S(Q 11 ), -P(Q 11 )(Q 12 ), -Si(Q 11 )(Q 12 )(Q 13 ), -N(Q 11 )(Q 12 ), -B(Q 11 )(Q 12 ), -C(=O)(Q 11 ), -S(=O) 2 (Q 11 ) and -P(=O)(Q 11 )(Q 12 ) of C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl and C 1 -C 60 alkoxy;

[0079] C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 6 -C 60 aryloxy, C 6 -C 60 arylthio, C 1 -C 60 heteroaryl, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group;

[0080] All are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazone, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -S(Q 21 ), -P(Q 21 )(Q 22 ), -Si(Q 21 )(Q 22 )(Q 23 ), -N(Q 21 )(Q 22 ), -B(Q 21 )(Q 22 ), -C(=O)(Q 21 ), -S(=O) 2 (Q 21 ), and -P(=O)(Q 21 )(Q 22 ), at least one selected from C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group and monovalent non-aromatic fused heteropolycyclic group; and

[0081] -S(Q 31 ), -P(Q 31 )(Q 32 ), -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ), and -P(=O)(Q 31 )(Q 32 ),

[0082] wherein Q 1 to Q 3 , Q 11 to Q 13 , Q 21 to Q 23 and Q 31 to Q 33 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl, and terphenyl,

[0083] The molecular weight of the compound represented by Formula 1 can be greater than or equal to about 50,000,

[0084] The molecular weight of the compound represented by Formula 2 can be less than or equal to about 10,000, and

[0085] *, *', and *" each represent a bonding position to an adjacent atom.

[0086] The molecular weight of the compound represented by Formula 1 is the weight-average molecular weight (Mv).

[0087] a and b respectively refer to the ratio of unit X and unit Y in the polymer represented by Formula 1. The sum of a and b is 1. For example, a can be from about 0.4 to about 0.6, and b can be from about 0.6 to about 0.4.

[0088] When X and Y in Formula 1 are two or more, each of X and each of Y may be the same as or different from each other.

[0089] [Y] b and (X 1 ) c is a structure in which two or more phenylene groups are connected.

[0090] Since Formula 2 is defined as a non-aromatic amine compound, examples in which Formula 2 or Z becomes an aromatic amine compound are excluded from the description of the above-mentioned substituents.

[0091] When o in Formula 2 is 2 or greater, each Z may be the same as or different from each other.

[0092] The term "non-aromatic amine compound" refers to a compound that does not include an aromatic amine compound. The term "aromatic amine compound" refers to a compound in which an aryl group is bonded to N.

[0093] In the composition, the compound represented by Formula 1 has a molecular weight of greater than or equal to about 50,000. For example, the molecular weight of the compound represented by Formula 1 may be in the range of about 100,000 to about 5,000,000. The polymer represented by Formula 1 does not have, for example, a crosslinkable functional group.

[0094] The compound represented by Formula 2 has a molecular weight of less than or equal to about 10,000. For example, the molecular weight of the compound represented by Formula 2 may be in the range of about 100 to about 8,000. The low-molecular compound represented by Formula 2 does not have, for example, a crosslinkable functional group. The term "molecular weight" refers to the weight-average molecular weight.

[0095] The term "low molecule" refers to a molecule having a molecular weight at which the compound does not exhibit the properties of a polymer.

[0096] When the molecular weight is low, the compound cannot form a film, fiber, etc.

[0097] In Formula 1, both a and b represent ratios in a state that satisfies the corresponding molecular weight range, and o in Formula 2 is a number that satisfies the corresponding molecular weight range.

[0098] When the molecular weights of Formula 1 and Formula 2 are within these ranges, the encapsulation stability of the resulting organic film is enhanced, improving the solvent resistance of the organic film.

[0099] In the examples, Y in Formula 1 and X in Formula 1-1 1 may each independently be a group represented by Formula 2a or Formula 2b:

[0100]

[0101] In Formula 2a and Formula 2b, R11 to R 15 may each independently be selected from hydrogen, deuterium, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentaphenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridyl, imidazopyrimidinyl and azacarbazolyl; and

[0102] each is substituted with from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentaphenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ), and -P(=O)(Q31 )(Q 32 ) at least one selected from C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl, and

[0103] a11 to a15 can each independently be an integer from 1 to 4.

[0104] In the examples, R in formula 1-1 1 and R 2 can each independently be any one of formulas 3a to 3e:

[0105]

[0106] In formulas 3a to 3e, R 21 to R 32 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 1 -C 10Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) and -P(=O)(Q 1 )(Q 2 ),

[0107] a21 can be an integer from 1 to 5,

[0108] a24, a26, a28 and a31 can each independently be an integer from 1 to 3,

[0109] a25, a27, a29 and a32 can each independently be an integer from 1 to 4, and

[0110] Substituted C 1 -C 60 Alkyl, substituted C 2 -C 60 Alkenyl, substituted C 2 -C 60 Alkynyl, substituted C 1 -C 60 Alkoxy, substituted C 3 -C 10 Cycloalkyl, substituted C 1 -C 10 Heterocycloalkyl, substituted C 3 -C 10 Cycloalkenyl, substituted C 1 -C 10 Heterocycloalkenyl, substituted C 6 -C 60 Aryl, substituted C 6 -C 60Aryloxy, substituted C 6 -C 60 Arylthio, substituted C 1 -C 60 Heteroaryl, substituted monovalent non-aromatic condensed polycyclic group, and substituted monovalent non-aromatic condensed heteropolycyclic group are the same as above, and * indicates the bonding position to the adjacent atom.

[0111] In the examples, Ar 1 to Ar 3 can each independently be selected from phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, -yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and

[0112] each substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, -yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31)(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ) selected from at least one of the C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl.

[0113] In an embodiment, Z in Formula 2 can be represented by Formula 4a:

[0114]

[0115] In formula 4a,

[0116] R 41 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, substituted or unsubstituted C 1 -C 60 Alkyl, substituted or unsubstituted C 2 -C 60 Alkenyl, substituted or unsubstituted C 2 -C 60 Alkynyl, substituted or unsubstituted C 1 -C 60 Alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) and -P(=O)(Q 1 )(Q 2 ),

[0117] a41 can be an integer from 2 to 4, and

[0118] In addition to not including In addition to the part, the substituted C 1 -C 60 Alkyl, substituted C 2 -C 60 Alkenyl, substituted C 2 -C 60 Alkynyl, substituted C 1 -C 60 Alkoxy, substituted C 3 -C 10 Cycloalkyl, substituted C 1 -C 10 Heterocycloalkyl, substituted C 3 -C 10 Cycloalkenyl, substituted C 1 -C 10 Heterocycloalkenyl, substituted C 6 -C 60 Aryl, substituted C 6 -C 60 Aryloxy, substituted C 6 -C 60 Arylthio, substituted C 1 -C 60 The heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group and the substituted monovalent non-aromatic condensed heteropolycyclic group are the same as described above.

[0119] In Formula 4a, the position of the hydrogen can optionally be the position of the bonding site of an adjacent atom.

[0120] In one embodiment, Formula 1 can be represented by Formula 3:

[0121] <Formula 3>

[0122]

[0123] In Formula 3, Ar 1 to Ar 3 , R 2 , R 11 , R 12 , R 24 , R 25 , a11, a12, a24, a25, a and b are understood by reference to those defined in Formulas 1, 1-1, 2a and 3b, and R' 11 and R' 12 each have the same definitions as R 11 and R 12 , respectively, a'11 and a'12 are each independently an integer from 1 to 4, Y 1 is O, S, CR 51 R 52 or NR 53 , and R 51 , R 52 and R 53 are understood by reference to the definition of R 21 in Formula 3a.

[0124] In an embodiment, Formula 1 can be represented by Formula 4:

[0125] <Formula 4>

[0126]

[0127] In Formula 4, Ar 1 to Ar 3 , R 2 , R 13 , R 14 , R 15 , R 24 , R 25 , a13, a14, a15, a24, a25, a and b are understood by reference to those defined in Formulas 1, 1-1, 2b and 3b, and R' 11 and R' 12 each have the same definitions as R 11 and R 12 , respectively, a'11 and a'12 are each independently an integer from 1 to 4, Y1 is O, S, CR 51 R 52 or NR 53 and R 51 、R 52 and R 53 is understood by referring to the definition of R in Formula 3a 21 .

[0128] In an embodiment, Formula 1 can be represented by Formula 5:

[0129] <Formula 5>

[0130]

[0131] In Formula 5, Ar 1 to Ar 3 、R 2 、R 13 、R 14 、R 15 、R 24 、R 25 、a13, a14, a15, a24, a25, a and b are understood by referring to those defined in Formulas 1, 1-1, 2b and 3b, and R' 13 、R' 14 and R' 15 each have the same definition as R 13 、R 14 and R 15 , a'13 to a'15 are each independently an integer from 1 to 4, and Y 1 is O, S, CR 51 R 52 or NR 53 and R 51 、R 52 and R 53 is understood by referring to the definition of R in Formula 3a 21 .

[0132] In an embodiment, Formula 1 can be represented by Formula 6:

[0133] <Formula 6>

[0134]

[0135] In Formula 6, Ar 1 to Ar 3 、R 2 、R 11 to R 15 、R 24 、R 25, a11 to a15, a24, a25, a and b are understood by reference to those defined in Formula 1, Formula 1-1, Formula 2a, Formula 2b and Formula 3b, Y 1 is O, S, CR 51 R 52 or NR 53 , and R 51 , R 52 and R 53 are understood by reference to the definition of R 21 in Formula 3a.

[0136] The compound represented by Formula 1 may include, for example, compounds having various sequences.

[0137]

[0138] When the fluorene substituent is named A and the octylphenyl substituent is named B, the asymmetric amine derivative and the halogen derivative react with each other in the polymerization and produce the following various polymers in which A and B are randomly linked:

[0139] etc.

[0140] In the examples, the polymer represented by Formula 1 in the composition may be any one of the following Compound 1 to Compound 10 and Compound 13 to Compound 35:

[0141]

[0142]

[0143]

[0144]

[0145]

[0146]

[0147]

[0148] In Compound 1 to Compound 10 and Compound 13 to Compound 35, a and b are the same as those described in connection with Formula 1.

[0149] Compound 1 to Compound 10 and Compound 13 to Compound 35 all satisfy a molecular weight of 50,000 or higher, and the ratio of a and b is the same as above under the condition of satisfying the molecular weight.

[0150] In an embodiment, the non-aromatic amine compound represented by Formula 2 in the composition can be any one of Compound A1 to Compound A5:

[0151] <Compound A1>

[0152]

[0153] <Compound A2>

[0154]

[0155] <Compound A3>

[0156]

[0157] <Compound A4>

[0158]

[0159] <Compound A5>

[0160]

[0161] In an embodiment, the solvent of the composition is a volatile organic solvent. For example, the solvent can be toluene, anisole, ethyl acetate, dichloromethane, methyl benzoate, cyclohexylbenzene, or tetrahydronaphthalene, but is not limited thereto.

[0162] In an embodiment, in the composition, the weight ratio of the polymer represented by Formula 1 to the non-aromatic amine compound represented by Formula 2 can be in the range of about 1:99 to about 99:1, and the concentration of the composition can be in the range of about 0.5% to about 20%.

[0163] When the weight ratio of the polymer represented by Formula 1 to the non-aromatic amine compound represented by Formula 2 is within this range, and the concentration of the composition is within this range, the simplicity of the operation and the solvent resistance of the resulting organic film can be optimized.

[0164] Such a composition can be printed and dried in an inkjet process to form an intermediate layer.

[0165] In an embodiment, the intermediate layer can be manufactured by a manufacturing method including drying the composition at about 150 °C to about 300 °C for about 1 minute to about 2 hours. For example, the intermediate layer is manufactured by a manufacturing method including drying the composition at about 200 °C to about 260 °C for about 10 minutes to about one hour. When the temperature is lower than about 150 °C, the resulting organic film will not be densified, and when the drying time is shorter than 1 minute, the solvent will remain. When the temperature is higher than about 300 °C, the compound will deteriorate, and when the drying time exceeds 2 hours, energy will be wasted.

[0166] In an embodiment, a method of fabricating an intermediate layer may include providing a composition onto a substrate; and drying the composition at a temperature of about 150 °C to about 300 °C.

[0167] The method of fabricating an intermediate layer may include, for example: preparing a composition by mixing a polymer represented by Formula 1, a non-aromatic amine-based low molecular weight compound represented by Formula 2, and a solvent; printing the composition onto a substrate by an inkjet process; and drying the substrate having the composition printed thereon at a temperature of about 200 °C to about 260 °C for about 10 minutes to about one hour.

[0168] In an embodiment, there is provided an intermediate layer including a polymer represented by Formula 1 and a non-aromatic amine-based low molecular weight compound represented by Formula 2. Formula 1 and Formula 2 are the same as those described above.

[0169] The composition is printed onto a substrate by an inkjet printing process, and the solvent is evaporated to leave an intermediate layer including a polymer represented by Formula 1 and a non-aromatic amine-based low molecular weight compound represented by Formula 2. For example, the intermediate layer may be composed of a polymer represented by Formula 1 and a non-aromatic amine-based low molecular weight compound represented by Formula 2.

[0170] As used herein, the expression “(the intermediate layer) includes at least one compound” may include a case where “(the intermediate layer) includes the same compound represented by Formula 1” and a case where “(the intermediate layer) includes two or more different compounds represented by Formula 1”.

[0171] For example, the intermediate layer may include only Compound 1 as the compound represented by Formula 1. Compound 1 may be present in the emission layer of a light-emitting device. In an embodiment, the intermediate layer may include Compound 1 and Compound 2 as the compounds represented by Formula 1. In this regard, Compound 1 and Compound 2 may be present in the same layer (for example, both Compound 1 and Compound 2 may be present in the emission layer), or may be present in different layers (for example, Compound 1 may be present in the emission layer and Compound 2 may be present in the electron transport region).

[0172] According to an embodiment, there is provided a light-emitting device including:

[0173] a first electrode;

[0174] a second electrode facing the first electrode; and

[0175] an intermediate layer disposed between the first electrode and the second electrode,

[0176] wherein the intermediate layer includes an emission layer and a layer including a polymer represented by Formula 1 and a non-aromatic amine-based low molecular weight compound represented by Formula 2.

[0177] According to an embodiment,

[0178] The first electrode of the light-emitting device may be an anode,

[0179] The second electrode of the light-emitting device may be a cathode,

[0180] The intermediate layer may further include a hole transport region disposed between the first electrode and the emission layer and an electron transport region disposed between the emission layer and the second electrode,

[0181] The hole transport region may include at least one selected from the group consisting of a hole injection layer, a hole transport layer, a buffer layer, and an electron blocking layer, and

[0182] The electron transport region may include at least one selected from the group consisting of a hole blocking layer, an electron transport layer, and an electron injection layer.

[0183] In an embodiment, the hole transport region may include a layer containing a polymer represented by Formula 1 and a non-aromatic amine-based low molecular weight compound represented by Formula 2.

[0184] In an embodiment, the hole transport layer may include a polymer represented by Formula 1 and a non-aromatic amine-based low molecular weight compound represented by Formula 2.

[0185] An electronic device is provided, which includes: a thin film transistor and a light-emitting device, wherein the thin film transistor includes a source electrode, a drain electrode, an active layer, and a gate electrode, and the first electrode of the light-emitting device is electrically connected to one of the source electrode and the drain electrode of the thin film transistor.

[0186] As used herein, the term "intermediate layer" refers to a single layer and / or all layers between the first electrode and the second electrode of the light-emitting device. The materials included in the "intermediate layer" are not limited to organic materials.

[0187] Figure 1 description]

[0188] Figure 1 is a schematic cross-sectional view of a light-emitting device 10 according to an embodiment. The light-emitting device 10 includes a first electrode 110, an intermediate layer 150, and a second electrode 190.

[0189] Hereinafter, the structure of the light-emitting device 10 according to an embodiment and a method of manufacturing the light-emitting device 10 will be described in conjunction with Figure 1 description.

[0190] [First electrode 110]

[0191] In Figure 1 , a substrate may be disposed below the first electrode 110 or above the second electrode 190. The substrate may be a glass substrate or a plastic substrate.

[0192] ​The first electrode 110 can be formed by depositing or sputtering a material for forming the first electrode 110 on a substrate. When the first electrode 110 is an anode, a high work function material capable of easily injecting holes can be used as the material for the first electrode 110.

[0193] The first electrode 110 can be a reflective electrode, a semi-transmissive electrode, or a transmissive electrode. When the first electrode 110 is a transmissive electrode, the material for forming the first electrode 110 may include indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2 ), zinc oxide (ZnO), or any combination thereof, but the disclosed embodiments are not limited thereto. In one or more embodiments, when the first electrode 110 is a semi-transmissive electrode or a reflective electrode, the material for forming the first electrode 110 may include magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), or any combination thereof, but the disclosed embodiments are not limited thereto.

[0194] The first electrode 110 can have a single-layer structure composed of a single layer or a multi-layer structure including multiple layers. For example, the first electrode 110 can have a three-layer structure of ITO / Ag / ITO, but the structure of the first electrode 110 is not limited thereto.

[0195] [Intermediate layer 150]

[0196] The intermediate layer 150 is located on the first electrode 110. The intermediate layer 150 includes an emission layer.

[0197] The intermediate layer 150 may further include a hole transport region between the first electrode 110 and the emission layer and an electron transport region between the emission layer and the second electrode 190.

[0198] In addition to various organic materials, the intermediate layer 150 may further include metal-containing compounds such as organometallic compounds, inorganic materials such as quantum dots, and the like.

[0199] [Hole transport region in intermediate layer 150]

[0200] The hole transport region can have: i) a single-layer structure composed of a single layer, the single layer being composed of a single material; ii) a single-layer structure composed of a single layer, the single layer being composed of different materials; or iii) a multi-layer structure including multiple layers containing different materials.

[0201] The hole transport region may include a hole injection layer, a hole transport layer, an emission assisting layer, an electron blocking layer, or any combination thereof.

[0202] For example, the hole transport region may have a multilayer structure, which includes a hole injection layer / hole transport layer structure, a hole injection layer / hole transport layer / emission assisting layer structure, a hole injection layer / emission assisting layer structure, a hole transport layer / emission assisting layer structure, or a hole injection layer / hole transport layer / electron blocking layer structure. In each structure, the layers are sequentially stacked from the first electrode 110 in the stated order, but the disclosed embodiments are not limited thereto.

[0203] The hole transport region may include an organic layer containing a polymer represented by Formula 1 and a non-aromatic amine-based low molecular compound represented by Formula 2.

[0204] The hole transport region may include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof:

[0205] <Formula 201>

[0206]

[0207] <Formula 202>

[0208]

[0209] In Formula 201 and Formula 202,

[0210] L 201 to L 204 may each independently be a substituted or unsubstituted C 3 -C 10 subcycloalkyl group, a substituted or unsubstituted C 1 -C 10 subheterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 subcycloalkenyl group, a substituted or unsubstituted C 1 -C 10 subheterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 subaryl group, a substituted or unsubstituted C 1 -C 60 subheteroaryl group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, or a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0211] L 205 may be *-O-*', *-S-*', *-N(Q 201 )-*', a substituted or unsubstituted C 1 -C 20 subalkyl group, a substituted or unsubstituted C 2 -C 20 subalkenyl group, a substituted or unsubstituted C 3 -C10 Subcycloalkyl, substituted or unsubstituted C 1 -C 10 Subheterocycloalkyl, substituted or unsubstituted C 3 -C 10 Subcycloalkenyl, substituted or unsubstituted C 1 -C 10 Subheterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Subaryl, substituted or unsubstituted C 1 -C 60 Subheteroaryl, substituted or unsubstituted divalent non-aromatic fused polycyclic group or substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0212] xa1 to xa4 can each independently be 0, 1, 2 or 3 (e.g., 0, 1 or 2),

[0213] xa5 can be an integer from 1 to 10 (e.g., 1, 2, 3 or 4), and

[0214] R 201 to R 204 and Q 201 can each independently be substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group or substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group.

[0215] For example, in Formula 202, R 201 and R 202 can optionally be connected to each other via a single bond, dimethyl-methylene or diphenyl-methylene, and R 203 and R 204 can optionally be connected to each other via a single bond, dimethyl-methylene or diphenyl-methylene.

[0216] In one embodiment, i) at least one of R in Formula 201 201 to R 203 and ii) at least one of R in Formula 202 201 to R 204 can each independently be unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C 1 -C 10 alkyl, phenyl substituted with -F, naphthyl, phenanthryl, indenyl, fluorenyl, dimethylfluorenyl, diphenylfluorenyl, spirobifluorenyl, benzofluorenyl, dimethylbenzofluorenyl, diphenylbenzofluorenyl, indeno[1,2,3-cd]phenanthryl, dimethylindeno[1,2,3-cd]phenanthryl, diphenylindeno[1,2,3-cd]phenanthryl, pyridyl, pyrrolyl, thienyl, furyl, indolyl, phenylindolyl, benzindolyl, phenylbenzindolyl, isoindolyl, phenylisoindolyl, benzisoindolyl, phenylbenzisoindolyl, benzosilolyl, dimethylbenzosilolyl, diphenylbenzosilolyl, benzothienyl, benzofuryl, carbazolyl, phenylcarbazolyl, biphenylcarbazolyl, dibenzosilolyl, dimethyldibenzosilolyl, diphenyldibenzosilolyl, dibenzothienyl and dibenzofuryl, or at least one of fluorenyl, spirobifluorenyl, benzofluorenyl, indeno[1,2,3-cd]phenanthryl, pyridyl, pyrrolyl, thienyl, furyl, indolyl, benzindolyl, isoindolyl, benzisoindolyl, benzosilolyl, benzothienyl, benzofuryl, carbazolyl, dibenzosilolyl, dibenzothienyl or dibenzofuryl, but the disclosed embodiments are not limited thereto.

[0217] In one embodiment, the compound represented by Formula 201 or Formula 202 may include at least one carbazolyl group.

[0218] In one embodiment, the compound represented by Formula 201 may not include a carbazolyl group.

[0219] In one embodiment, the compound represented by Formula 201 may be represented by Formula 201A-1:

[0220] <Formula 201A-1>

[0221]

[0222] L in Formula 201A-1 203 , xa3 and R 203 are the same as above, and R 211 to R 216Each may independently be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C 1 -C 10 alkyl, phenyl substituted with -F, naphthyl, phenanthryl, indenyl, fluorenyl, dimethylfluorenyl, diphenylfluorenyl, spirobifluorenyl, benzofluorenyl, dimethylbenzofluorenyl, diphenylbenzofluorenyl, indeno[1,2,3-cd]phenanthryl, dimethylindeno[1,2,3-cd]phenanthryl, diphenylindeno[1,2,3-cd]phenanthryl, pyridyl, pyrrolyl, thienyl, furyl, indolyl, phenylindolyl, benzindolyl, phenylbenzindolyl, isoindolyl, phenylisoindolyl, benzisoindolyl, phenylbenzisoindolyl, benzosilolyl, dimethylbenzosilolyl, diphenylbenzosilolyl, benzothienyl, benzofuryl, carbazolyl, phenylcarbazolyl, biphenylcarbazolyl, dibenzosilolyl, dimethyldibenzosilolyl, diphenyldibenzosilolyl, dibenzothienyl or dibenzofuryl.

[0223] The hole transport region may include one of compounds HT1 to HT44, m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, spiro-TPD, spiro-NPB, methylated-NPB, TAPC, HMTPD, 4,4',4"-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphorsulfonic acid (PANI / CSA), and polyaniline / poly(4-styrenesulfonate) (PANI / PSS), or any combination thereof, but the disclosed embodiments are not limited thereto:

[0224]

[0225]

[0226]

[0227]

[0228] The thickness of the hole transport region may be in the range of about to about For example, the thickness of the hole transport region may be in the range of about to about Within the range. When the hole transport region includes at least one of a hole injection layer and a hole transport layer, the thickness of the hole injection layer can be about to about Within the range, and the thickness of the hole transport layer can be about to about Within the range. For example, the thickness of the hole injection layer can be about to about Within the range. For example, the thickness of the hole transport layer can be about to about Within the range. When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer are within these ranges, satisfactory hole transport characteristics can be obtained without significantly increasing the driving voltage.

[0229] The emission assisting layer can improve the light-emitting efficiency by compensating for the optical resonance distance according to the wavelength of the light emitted by the emission layer, and the electron blocking layer can block electrons from flowing in from the electron transport region. The emission assisting layer and the electron blocking layer can include the materials as described above.

[0230] [p-dopant]

[0231] In addition to these materials, the hole transport region may further include a charge generation material for improving the conductive property. The charge generation material may be uniformly or non-uniformly dispersed in the hole transport region.

[0232] The charge generation material may be, for example, a p-dopant.

[0233] In one embodiment, the lowest unoccupied molecular orbital (LUMO) energy level of the p-dopant can be -3.5 eV or less.

[0234] The p-dopant may include a quinone derivative, a metal oxide, a cyanide-containing compound, or any combination thereof, but the disclosed embodiments are not limited thereto.

[0235] In one embodiment, the p-dopant may include:

[0236] Quinone derivatives such as TCNQ, F4-TCNQ, etc.;

[0237] Metal oxides such as tungsten oxide or molybdenum oxide;

[0238] Cyanide-containing compounds such as HAT-CN, etc.;

[0239] The compound represented by Formula 221; or

[0240] Any combination thereof.

[0241] However, the disclosed embodiments are not limited thereto:

[0242]

[0243] <Formula 221>

[0244]

[0245] In Formula 221,

[0246] R 221 to R 223 may each independently be a substituted or unsubstituted C 3 -C 10 cycloalkyl, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl, a substituted or unsubstituted C 3 -C 10 cycloalkenyl, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl, a substituted or unsubstituted C 6 -C 60 aryl, a substituted or unsubstituted C 1 -C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group or a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, and at least one of R 221 to R 223 may each independently be an unsubstituted or substituent-substituted C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, a monovalent non-aromatic fused polycyclic group or a monovalent non-aromatic fused heteropolycyclic group, the substituent being cyano, -F, -Cl, -Br, -I, a C 1 -C 20 alkyl substituted with at least one cyano, a C 1 -C 20 alkyl substituted with at least one -F, a C 1 -C 20 alkyl substituted with at least one -Cl, a C 1 -C 20 alkyl substituted with at least one -Br, a C 1 -C 20 alkyl or any combination thereof.

[0247] [Emission layer in the intermediate layer 150]

[0248] When the light-emitting device 10 is a full-color light-emitting device, the emission layer may be patterned into a red emission layer, a green emission layer, and / or a blue emission layer according to sub-pixels. In one or more embodiments, the emission layer may have a stacked structure of two or more layers among a red emission layer, a green emission layer, and a blue emission layer, wherein the two or more layers are in contact with each other or separated from each other. In one or more embodiments, the emission layer may include two or more materials among a red light-emitting material, a green light-emitting material, and a blue light-emitting material, wherein the two or more materials are mixed with each other in a single layer to emit white light.

[0249] The emission layer may include a host and a dopant. The dopant may include a phosphorescent dopant, a fluorescent dopant, or any combination thereof.

[0250] Based on 100 parts by weight of the host, the amount of the dopant in the emission layer may be from about 0.01 part by weight to about 15 parts by weight. However, the disclosed embodiments are not limited thereto.

[0251] In one or more embodiments, the emission layer may include quantum dots.

[0252] The thickness of the emission layer may be about to about . For example, the thickness of the emission layer may be from about to about . When the thickness of the emission layer is within this range, excellent light-emitting characteristics can be obtained without significantly increasing the driving voltage.

[0253] [Host in the emission layer]

[0254] In one or more embodiments, the host may include a compound represented by the following formula 301:

[0255] <Formula 301>

[0256] [Ar 301 xb11 -[(L 301 ) xb1 -R 301 xb21 .

[0257] In formula 301,

[0258] Ar 301 may be a substituted or unsubstituted C 5 -C 60 carbocyclic group or a substituted or unsubstituted C 1 -C​​60 Heterocyclic group

[0259] xb11 can be 1, 2 or 3

[0260] L 301 can be a substituted or unsubstituted C 3 -C 10 substituted or unsubstituted C 1 -C 10 substituted or unsubstituted C 3 -C 10 substituted or unsubstituted C 1 -C 10 substituted or unsubstituted C 6 -C 60 substituted or unsubstituted C 1 -C 60 substituted or unsubstituted divalent non-aromatic condensed polycyclic group or substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group

[0261] xb1 can be 0, 1, 2, 3, 4 or 5

[0262] R 301 can be deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 1 -C 10 heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 6 -C 60 aryloxy, substituted or unsubstituted C 6 -C 60 arylthio, substituted or unsubstituted C 1 -C 60heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 301 )(Q 302 )(Q 303 )、-N(Q 301 )(Q 302 )、-B(Q 301 )(Q 302 )、-C(=O)(Q 301 )、-S(=O) 2 (Q 301 ) or -P(=O)(Q 301 )(Q 302 ),

[0263] xb21 can be 1, 2, 3, 4, or 5, and

[0264] Q 301 To Q 303 Combined with Q 1 Same as described.

[0265] In one or more embodiments, when xb11 in Formula 301 is 2 or greater, two or more Ar 301 can be connected to each other via a single bond.

[0266] In one embodiment, the host may include a compound represented by Formula 301-1, a compound represented by Formula 301-2, or any combination thereof:

[0267] <Formula 301-1>

[0268]

[0269] <Formula 301-2>

[0270]

[0271] In Formula 301-1 and Formula 301-2,

[0272] Ring A 301 To Ring A 304 can be independently C 5 -C 60 Carbocyclic or C 1 -C 60 Heterocyclic group,

[0273] X 301 Can be O, S, N-[(L 304 ) xb4 -R 304 ]、C(R 304 )(R 305) or Si(R 304 )(R 305 ),

[0274] xb22 and xb23 can each independently be 0, 1, or 2,

[0275] L 301 , xb1, and R 301 are the same as described above,

[0276] L 302 to L 304 are each independently the same as those described in connection with L 301 described,

[0277] xb2 to xb4 can each independently be the same as those described in connection with xb1, and

[0278] R 302 to R 305 and R 311 to R 314 are the same as those described in connection with R 301 described.

[0279] In one or more embodiments, the host may include an alkaline earth metal complex. For example, the host may be a Be complex (e.g., compound H55), a Mg complex, a Zn complex, or any combination thereof.

[0280] In one embodiment, the host may include one of compounds H1 to H120, 9,10-bis(2-naphthyl)anthracene (ADN), 2-methyl-9,10-bis(naphthalen-2-yl)anthracene (MADN), 9,10-bis(2-naphthyl)-2-tert-butyl-anthracene (TBADN), 4,4'-bis(N-carbazolyl)-1,1'-biphenyl (CBP), 1,3-di-9-carbazolylbenzene (mCP), and 1,3,5-tris(carbazol-9-yl)benzene (TCP), or any combination thereof, but the disclosed embodiments are not limited thereto:

[0281]

[0282]

[0283]

[0284]

[0285]

[0286]

[0287] [Phosphorescent dopant included in the emissive layer in the intermediate layer 150]

[0288] The phosphorescent dopant may include at least one transition metal as the central metal.

[0289] The phosphorescent dopant may include a monodentate ligand, a bidentate ligand, a tridentate ligand, a tetradentate ligand, a pentadentate ligand, a hexadentate ligand, or any combination thereof.

[0290] The phosphorescent dopant may be electrically neutral.

[0291] For example, the phosphorescent dopant may include an organometallic compound represented by Formula 401:

[0292] <Formula 401>

[0293] M(L 401 ) xc1 (L 402 ) xc2

[0294] <Formula 402>

[0295]

[0296] In Formula 401 and Formula 402,

[0297] M may be a transition metal (e.g., iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), gold (Au), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh), rhenium (Re), or thulium (Tm)),

[0298] L 401 may be a ligand represented by Formula 402, and xc1 may be 1, 2, or 3, where when xc1 is 2 or greater, two or more L 401 may be the same as or different from each other,

[0299] L 402 may be an organic ligand, xc2 may be 0, 1, 2, 3, or 4, and when xc2 is 2 or greater, two or more L 402 may be the same as or different from each other,

[0300] X 401 and X 402 may each independently be nitrogen or carbon,

[0301] Ring A 401 and Ring A 402 may each independently be a C 5 -C 60 carbocyclic group or a C 1 -C 60 heterocyclic group,

[0302] T401 It can be a single bond, *-O-*, *-S-*, *-C(=O)-*, *-N(Q 411 )-*, *-C(Q 411 )(Q 412 )-*, *-C(Q 411 )=C(Q 412 )-*, *-C(Q 411 )=* or *=C=*,

[0303] X 403 and X 404 can each independently be a chemical bond (e.g., a covalent bond or a coordination bond), O, S, N(Q 413 ), B(Q 413 ), P(Q 413 ), C(Q 413 )(Q 414 ) or Si(Q 413 )(Q 414 ),

[0304] Q 411 to Q 414 is the same as described for the binding Q 1 ,

[0305] R 401 and R 402 can each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, a substituted or unsubstituted C 1 -C 20 alkyl, a substituted or unsubstituted C 1 -C 20 alkoxy, a substituted or unsubstituted C 3 -C 10 cycloalkyl, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl, a substituted or unsubstituted C 3 -C 10 cycloalkenyl, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl, a substituted or unsubstituted C 6 -C 60 aryl, a substituted or unsubstituted C 6 -C 60 aryloxy, a substituted or unsubstituted C 6 -C 60 arylthio, a substituted or unsubstituted C 1 -C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group, a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 401)(Q 402 )(Q 403 )、-N(Q 401 )(Q 402 )、-B(Q 401 )(Q 402 )、-C(=O)(Q 401 )、-S(=O) 2 (Q 401 ) or -P(=O)(Q 401 )(Q 402 ),

[0306] Q 401 To Q 403 Combined with Q 1 Same as described,

[0307] xc11 and xc12 may each independently be an integer from 0 to 10, and

[0308] The * and *' in formula 402 both represent the binding site with M in formula 401.

[0309] In one or more embodiments, in Formula 402, i) X 401 Can be nitrogen, X 402 It can be carbon, or ii) X 401 and X 402 Each of can be nitrogen.

[0310] In one or more embodiments, when xc1 in equation 401 is 2 or greater, two or more L 401 The two rings A 401 It can be optionally connected via T as a linker 402 connected to each other, or two or more L 401 The two rings A 402 It can be optionally connected via T as a linker 403 Connected to each other (see Compound PD1 to Compound PD4 and Compound PD7). 402 and T 403 Combined with T 401 Same as described.

[0311] L in Formula 401 402 It can be an organic ligand. For example, L 402 It may be a halogen group, a diketone group (e.g., an acetylacetonate group), a carboxylic acid group (e.g., a picolinic acid salt group), -C(=O), an isonitrile group, a -CN group, a phosphorus-containing group (e.g., a phosphine group or a phosphite group), or any combination thereof, but the disclosed embodiments are not limited thereto.

[0312] The phosphorescent dopant may include, for example, one or any combination of the following compounds PD1 to compound PD25, but the disclosed embodiments are not limited thereto:

[0313]

[0314]

[0315] [Fluorescent dopant in the emission layer]

[0316] The fluorescent dopant may include an amine group (amino group)-containing compound, a styryl group-containing compound, or any combination thereof.

[0317] For example, the fluorescent dopant may include a compound represented by Formula 501:

[0318] [Formula 501]

[0319]

[0320] In Formula 501,

[0321] Ar 501 may be a substituted or unsubstituted C 5 -C 60 carbocyclic group or a substituted or unsubstituted C 1 -C 60 heterocyclic group,

[0322] L 501 to L 503 may each independently be a substituted or unsubstituted C 3 -C 10 subcycloalkyl group, a substituted or unsubstituted C 1 -C 10 subheterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 subcycloalkenyl group, a substituted or unsubstituted C 1 -C 10 subheterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 subaryl group, a substituted or unsubstituted C 1 -C 60 subheteroaryl group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group or a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0323] xd1 to xd3 may each independently be 0, 1, 2, or 3,

[0324] R 501 and R 502 may each independently be a substituted or unsubstituted C 3 -C 10Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group or substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, and

[0325] xd4 can be 1, 2, 3, 4, 5 or 6.

[0326] For example, Ar in Formula 501 501 can be a fused ring in which three or more monocyclic groups are fused (e.g., anthryl, yl, pyrenyl, etc.).

[0327] In one embodiment, xd4 in Formula 501 can be 2, but the disclosed embodiments are not limited thereto.

[0328] For example, the fluorescent dopant can include one of Compounds FD1 to FD36, DPVBi, and DPAVBi, or any combination thereof:

[0329]

[0330]

[0331]

[0332]

[0333] [Quantum dots in the emission layer]

[0334] The emission layer can include quantum dots.

[0335] As used herein, quantum dots refer to crystals of semiconductor compounds and can include any material that emits light with different emission wavelengths depending on the size of the crystal. Therefore, the material for the quantum dots is not particularly limited. The diameter of the quantum dots is not particularly limited, but can be, for example, in the range of about 1 nm to about 10 nm.

[0336] Quantum dots disposed on the quantum dot emitting layer can be synthesized by a wet chemical process, a metalorganic chemical vapor deposition process, a molecular beam epitaxy process, or a similar process.

[0337] According to the wet chemical process, a precursor material is added to an organic solvent to grow crystals of quantum dot particles. When the crystals grow, the organic solvent serves as a dispersant that naturally coordinates with the surface of the quantum dot crystals and controls the growth of the crystals. In this regard, compared with vapor deposition processes such as metalorganic chemical vapor deposition (MOCVD) and molecular beam epitaxy (MBE), the wet chemical process can be easily performed, and the growth of quantum dot particles can be controlled by a low-cost process. Specifically, the quantum dots can include group III-VI semiconductor compounds, group I-III-VI semiconductor compounds, group II-VI semiconductor compounds, group III-V semiconductor compounds, group IV-VI semiconductor compounds, group IV elements or compounds, or any combination thereof.

[0338] For example, group III-VI semiconductor compounds can include: binary compounds such as In 2 S 3 ; for example, group I-III-VI semiconductor compounds can include: ternary compounds such as AgInS, AgInS 2 、CuInS、CuInS 2 or any combination thereof.

[0339] For example, group II-VI semiconductor compounds can include: binary compounds such as CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe or MgS; ternary compounds such as CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe or MgZnS; quaternary compounds such as CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe or HgZnSTe; or any combination thereof.

[0340] For example, III-V semiconductor compounds may include: binary compounds such as GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, or InSb; ternary compounds such as GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InNAs, InNSb, InPAs, or InPSb; quaternary compounds such as GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, or InAlPSb; or any combination thereof.

[0341] For example, IV-VI semiconductor compounds may include: binary compounds such as SnS, SnSe, SnTe, PbS, PbSe, or PbTe; ternary compounds such as SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, or SnPbTe; quaternary compounds such as SnPbSSe, SnPbSeTe, or SnPbSTe; or any combination thereof.

[0342] For example, group-IV elements or compounds may include: elemental substances such as Si or Ge; binary compounds such as SiC or SiGe; or any combination thereof.

[0343] Each element included in the binary compound, ternary compound, or quaternary compound may be present in the particles at a uniform concentration, or may be present in the same particle in a state where the concentration distribution is locally different.

[0344] The quantum dots may have a single structure in which the concentration of each element included in the quantum dots is uniform, or may have a core-shell double structure. For example, the material included in the core and the material included in the shell may be different from each other.

[0345] The shell of the quantum dots may serve as a protective layer for maintaining semiconductor characteristics by preventing chemical denaturation (or chemical degradation) of the core, and / or may serve as a charged layer for imparting electrophoretic characteristics to the quantum dots. The shell may be a single layer or multiple layers. The interface between the core and the shell may have a concentration gradient in which the concentration of the elements present in the shell decreases toward the center.

[0346] Examples of the shell of the quantum dots may include metal or non-metal oxides, semiconductor compounds, or any combination thereof. For example, the metal or non-metal oxides may include binary compounds (such as SiO 2 、Al 2 O 3 、TiO 2 、ZnO, MnO, Mn 2 O 3 、Mn 3 O 4 、CuO, FeO, Fe 2 O 3 、Fe 3 O 4 、CoO, Co 3 O 4 or NiO) or ternary compounds (such as MgAl 2 O 4 、CoFe 2 O 4 、NiFe 2 O 4 or CoMn 2 O 4 ), but the disclosed embodiments are not limited thereto. The semiconductor compounds may include CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb, etc., but the disclosed embodiments are not limited thereto.

[0347] The full width at half maximum (FWHM) of the emission wavelength spectrum of the quantum dots may be about 45 nm or less, for example, about 40 nm or less, for example, about 30 nm or less. When the FWHM of the emission wavelength spectrum of the quantum dots is within this range, the color purity or color reproducibility can be improved. The light emitted by such quantum dots is irradiated omnidirectionally, thereby improving the wide viewing angle.

[0348] The quantum dots may specifically be spherical, pyramidal, multi-armed, or cubic nanoparticles, nanotubes, nanowires, nanofibers, or nanoplate particles, but the disclosed embodiments are not limited thereto.

[0349] By adjusting the size of the quantum dots, the band gap can also be adjusted, so as to obtain light of various wavelengths in the quantum dot emission layer. Therefore, by using quantum dots of different sizes, a light-emitting device that emits light of various wavelengths can be realized. Specifically, the size of the quantum dots can be selected to emit red light, green light, and / or blue light. The size of the quantum dots can be configured to emit white light in which various colors of light are combined.

[0350] [Electron transport region in the intermediate layer 150]

[0351] The electron transport region may have: i) a single-layer structure, consisting of a single layer composed of a single material, ii) a single-layer structure, consisting of a single layer composed of different materials, or iii) a multi-layer structure, including multiple layers containing different materials.

[0352] The electron transport region may include a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or any combination thereof, but the disclosed embodiments are not limited thereto.

[0353] For example, the electron transport region may have an electron transport layer / electron injection layer structure, a hole blocking layer / electron transport layer / electron injection layer structure, an electron control layer / electron transport layer / electron injection layer structure, or a buffer layer / electron transport layer / electron injection layer structure, where, for each structure, the constituent layers are sequentially stacked in the stated order from the emission layer. However, the embodiments of the structure of the electron transport region are not limited thereto.

[0354] The electron transport region (e.g., the buffer layer, hole blocking layer, electron control layer, or electron transport layer in the electron transport region) may include a metal-free compound containing at least one π-electron-deficient nitrogen-containing cyclic group (or π-electron-depleted nitrogen-containing cyclic group) that can easily accept electrons.

[0355] The "π-electron-deficient nitrogen-containing cyclic group" may be a C 1 -C 60 heterocyclic group.

[0356] For example, the "π-electron-deficient nitrogen-containing cyclic group" may be: i) a first ring; ii) a condensed ring group in which two or more first rings are condensed with each other; or iii) a condensed ring group in which at least one first ring and at least one second ring are condensed, where the first ring is a hetero-monocyclic group including at least one *-N=*' moiety as a ring-forming moiety (e.g., imidazolyl, pyridyl, triazinyl, etc.), and the second ring is a ring group not including the *-N=*' moiety as a ring-forming moiety (e.g., phenyl, dibenzofuranyl, carbazolyl, etc.).

[0357] Examples of the π - electron - deficient nitrogen - containing ring groups include pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, benzoquinolinyl, isoquinolinyl, benzoisoquinolinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthrolinyl, phthalazinyl, naphthyridinyl, azacarbazolyl, azaf luorenyl, azadibenzosilolyl, azadibenzothiophenyl, azadibenzofuranyl, pyrazolyl, imidazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl, benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, benzoxadiazolyl, benzothiadiazolyl, imidazopyridyl, imidazopyrimidinyl, imidazotriazinyl, imidazopyrazinyl, and imidazopyridazinyl. However, the disclosed examples are not limited thereto.

[0358] For example, the electron - transporting region may include a compound represented by Formula 601 and containing at least one π - electron - deficient nitrogen - containing ring group.

[0359] <Formula 601>

[0360] [Ar 601 xe11 -[(L 601 ) xe1 -R 601 xe21 。

[0361] In Formula 601,

[0362] Ar 601 may be a substituted or unsubstituted C 5 -C 60 carbocyclic group or a substituted or unsubstituted C 1 -C 60 heterocyclic group.

[0363] xe11 may be 1, 2, or 3.

[0364] L 601 may be a substituted or unsubstituted C 3 -C 10 subcycloalkyl group, a substituted or unsubstituted C 1 -C 10 subheterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 subcycloalkenyl group, a substituted or unsubstituted C 1 -C 10 subheterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 subaryl group, a substituted or unsubstituted C 1 -C 60 ​​A heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group, or a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0365] xe1 can be 0, 1, 2, 3, 4, or 5,

[0366] R 601 can be a substituted or unsubstituted C 3 -C 10 cycloalkyl, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl, a substituted or unsubstituted C 3 -C 10 cycloalkenyl, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl, a substituted or unsubstituted C 6 -C 60 aryl, a substituted or unsubstituted C 6 -C 60 aryloxy, a substituted or unsubstituted C 6 -C 60 arylthio, a substituted or unsubstituted C 1 -C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group, a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 601 )(Q 602 )(Q 603 ), -C(=O)(Q 601 ), -S(=O) 2 (Q 601 ), or -P(=O)(Q 601 )(Q 602 ),

[0367] Q 601 to Q 603 is the same as described for the bonded Q 1 and

[0368] xe21 can be 1, 2, 3, 4, or 5.

[0369] For example, at least one of Ar 601 , L 601 and R 601 in Formula 601 can each independently include at least one nitrogen-containing ring with electron-deficient π electrons.

[0370] In one or more embodiments, when xe11 in Formula 601 is 2 or greater, two or more Ar 601 can be connected to each other via a single bond.

[0371] In one embodiment, Ar in Formula 601601 may be a substituted or unsubstituted anthryl group.

[0372] In one embodiment, the electron transport region may include a compound represented by Formula 601-1:

[0373] <Formula 601-1>

[0374]

[0375] In Formula 601-1,

[0376] X 614 may be N or C(R 614 ), X 615 may be N or C(R 615 ), X 616 may be N or C(R 616 ), and at least one of X 614 to X 616 may be N,

[0377] L 611 to L 613 may be understood by referring to the description given in connection with L 601 .

[0378] xe611 to xe613 may be understood by referring to the description given in connection with xe1.

[0379] R 611 to R 613 may be understood by referring to the description given in connection with R 601 . And

[0380] R 614 to R 616 may each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl or naphthyl.

[0381] For example, xe1 in Formula 601 and xe611 to xe613 in Formula 601-1 may each independently be 0, 1 or 2.

[0382] The electron transport region may include compounds ET1 to compound ET36, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq 3, one of BAlq, TAZ, and NTAZ, or any combination thereof, but the disclosed embodiments are not limited thereto:

[0383]

[0384]

[0385] The thicknesses of the buffer layer, hole-blocking layer, and electron control layer can each independently be in the range of about to about . For example, the thickness of the buffer layer, the thickness of the hole-blocking layer, and the thickness of the electron control layer can each independently be in the range of about to about . When the thicknesses of the buffer layer, hole-blocking layer, and electron control layer are within these ranges, excellent hole-blocking characteristics or excellent electron control characteristics can be obtained without significantly increasing the driving voltage.

[0386] The thickness of the electron transport layer can be in the range of about to about . For example, the thickness of the electron transport layer can be in the range of about to about . When the thickness of the electron transport layer is within the above range, the electron transport layer can have satisfactory electron transport characteristics without significantly increasing the driving voltage.

[0387] In addition to the above materials, the electron transport region (e.g., the electron transport layer in the electron transport region) can also include a metal-containing material.

[0388] The metal-containing material can include an alkali metal complex, an alkaline earth metal complex, or any combination thereof. The metal ion of the alkali metal complex can be a Li ion, Na ion, K ion, Rb ion, or Cs ion, and the metal ion of the alkaline earth metal complex can be a Be ion, Mg ion, Ca ion, Sr ion, or Ba ion. The ligand coordinated with the metal ion of the alkali metal complex or alkaline earth metal complex can be hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof, but the disclosed embodiments are not limited thereto.

[0389] For example, the metal-containing material can include a Li complex. The Li complex can include, for example, compound ET-D1(LiQ) or compound ET-D2:

[0390]

[0391] The electron transport region may include an electron injection layer that facilitates the injection of electrons from the second electrode 190. The electron injection layer may be in direct contact with the second electrode 190.

[0392] The electron injection layer may have: i) a single-layer structure, consisting of a single layer composed of a single material; ii) a single-layer structure, consisting of a single layer composed of different materials; or iii) a multi-layer structure, including multiple layers containing different materials.

[0393] The electron injection layer may include an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0394] The alkali metal may include Li, Na, K, Rb, Cs, or any combination thereof. The alkaline earth metal may include Mg, Ca, Sr, Ba, or any combination thereof. The rare earth metal may include Sc, Y, Ce, Tb, Yb, Gd, or any combination thereof.

[0395] The alkali metal compound, alkaline earth metal compound, and rare earth metal compound may be oxides and halides (e.g., fluorides, chlorides, bromides, or iodides) of alkali metals, alkaline earth metals, and rare earth metals, or any combination thereof.

[0396] The alkali metal compound may be an alkali metal oxide (such as Li 2 O, Cs 2 O, or K 2 O), an alkali metal halide (such as LiF, NaF, CsF, KF, LiI, NaI, CsI, or KI), or any combination thereof. The alkaline earth metal compound may include an alkaline earth metal oxide (such as BaO, SrO, CaO, Ba x Sr 1-x O (0 < x < 1), or Ba x Ca 1-x O (0 < x < 1)). The rare earth metal compound may include YbF 3 , ScF 3 , Sc 2 O 3 , Y 2 O 3 , Ce 2 O 3 , GdF 3 , TbF 3 , YbI 3 , ScI 3 , TbI 3 or any combination thereof.

[0397] Alkali metal complexes, alkaline earth metal complexes, and rare earth metal complexes may include: i) one of the ions of alkali metals, alkaline earth metals, and rare earth metals; and ii) ligands attached to the metal ions (e.g., hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyl oxazole, hydroxyphenyl thiazole, hydroxyphenyl oxadiazole, hydroxyphenyl thiadiazole, hydroxyphenyl pyridine, hydroxyphenyl benzimidazole, hydroxyphenyl benzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof), but the disclosed embodiments are not limited thereto.

[0398] The electron injection layer may be composed of alkali metals, alkaline earth metals, rare earth metals, alkali metal-containing compounds, alkaline earth metal-containing compounds, rare earth metal-containing compounds, alkali metal complexes, alkaline earth metal complexes, rare earth metal complexes, or any combination thereof (or may include alkali metals, alkaline earth metals, rare earth metals, alkali metal-containing compounds, alkaline earth metal-containing compounds, rare earth metal-containing compounds, alkali metal complexes, alkaline earth metal complexes, rare earth metal complexes, or any combination thereof), or may further include an organic material (e.g., a compound represented by Formula 601). When the electron injection layer further includes an organic material, the alkali metals, alkaline earth metals, rare earth metals, alkali metal-containing compounds, alkaline earth metal-containing compounds, rare earth metal-containing compounds, alkali metal complexes, alkaline earth metal complexes, rare earth metal complexes, or any combination thereof may be uniformly or non-uniformly dispersed in the matrix including the organic material.

[0399] The thickness of the electron injection layer may be in the range of about to about For example, the thickness of the electron injection layer may be in the range of about to about When the thickness of the electron injection layer is within the above range, the electron injection layer may have satisfactory electron injection characteristics without significantly increasing the driving voltage.

[0400] [Second Electrode 190]

[0401] The second electrode 190 may be located on the intermediate layer 150 having such a structure. The second electrode 190 may be a cathode as an electron injection electrode, and metals, alloys, conductive compounds, or any combination thereof having low work functions may be used as the material of the second electrode 190.

[0402] The second electrode 190 may include lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), ITO, IZO, or any combination thereof, but the disclosed embodiments are not limited thereto. The second electrode 190 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0403] The second electrode 190 may have a single-layer structure or a multi-layer structure including two or more layers.

[0404] [Cover layer]

[0405] The first cover layer may be located outside the first electrode 110, and / or the second cover layer may be located outside the second electrode 190. Specifically, the light-emitting device 10 may have the following structures: a structure in which the first cover layer, the first electrode 110, the intermediate layer 150, and the second electrode 190 are sequentially stacked in the stated order, a structure in which the first electrode 110, the intermediate layer 150, the second electrode 190, and the second cover layer are sequentially stacked in the stated order, or a structure in which the first cover layer, the first electrode 110, the intermediate layer 150, the second electrode 190, and the second cover layer are sequentially stacked in the stated order.

[0406] The light generated in the emission layer of the intermediate layer 150 of the light-emitting device 10 may be extracted to the outside through the first electrode 110 and the first cover layer (wherein each first electrode 110 may be a semi-transmissive electrode or a transmissive electrode), or the light generated in the emission layer of the intermediate layer 150 of the light-emitting device 10 may be extracted to the outside through the second electrode 190 and the second cover layer (wherein each second electrode 190 may be a semi-transmissive electrode or a transmissive electrode).

[0407] The first cover layer and the second cover layer may improve the external light-emitting efficiency according to the principle of constructive interference.

[0408] The first cover layer and the second cover layer may each independently be an organic cover layer including an organic material, an inorganic cover layer including an inorganic material, or a composite cover layer including an organic material and an inorganic material.

[0409] At least one of the first cover layer and the second cover layer may each independently include a carbocyclic compound, a heterocyclic compound, an amino group-containing compound, a porphyrin derivative, a phthalocyanine derivative, a naphthalocyanine derivative, an alkali metal complex, an alkaline earth metal complex, or a combination thereof. The carbocyclic compound, the heterocyclic compound, and the amino group-containing compound may optionally be substituted with substituents including O, N, S, Se, Si, F, Cl, Br, I, or any combination thereof. In one embodiment, at least one of the first cover layer and the second cover layer may each independently include an amino group-containing compound.

[0410] For example, at least one of the first cover layer and the second cover layer may each independently include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof.

[0411] In one or more embodiments, at least one of the first capping layer and the second capping layer may each independently include at least one compound selected from compounds HT28 to HT33 and compounds CP1 to CP5, but the disclosed embodiments are not limited thereto:

[0412]

[0413] [Device]

[0414] The light-emitting device may be included in various devices. For example, a light-emitting device, an authentication device, or an electronic device including the light-emitting device may be provided.

[0415] In addition to the light-emitting device, the light-emitting device may further include a color filter. The color filter may be positioned in at least one traveling direction of the light emitted from the light-emitting device. For example, the light emitted from the light-emitting device may be blue light, but the disclosed embodiments are not limited thereto. The light-emitting device is the same as described above.

[0416] The light-emitting device may include a first substrate. The first substrate may include a sub-pixel region, and the color filter may include a color filter region corresponding to the sub-pixel region, respectively.

[0417] A pixel defining film may be formed between the sub-pixel regions to define each sub-pixel region.

[0418] The color filter may further include a light-blocking pattern located between the color filter regions.

[0419] The color filter region may include a first color filter region that emits first color light, a second color filter region that emits second color light, and / or a third color filter region that emits third color light, and the first color light, the second color light, and / or the third color light may have different maximum emission wavelengths from each other. For example, the first color light may be red light, the second color light may be green light, and the third color light may be blue light, but the disclosed embodiments are not limited thereto. For example, the color filter regions may each include quantum dots, but the disclosed embodiments are not limited thereto. Specifically, the first color filter region may include red quantum dots, the second color filter region may include green quantum dots, and the third color filter region may not include quantum dots. The quantum dots are the same as described above. The first color filter region, the second color filter region, and / or the third color filter region may each include a dispersion, but the disclosed embodiments are not limited thereto.

[0420] In one embodiment, the light-emitting device may emit first light. The first color filter region may absorb the first light to emit first first-color light, the second color filter region may absorb the first light to emit second first-color light, and the third color filter region may absorb the first light to emit third first-color light. In this regard, the first first-color light, the second first-color light, and the third first-color light may have maximum emission wavelengths different from each other. Specifically, the first light may be blue light, the first first-color light may be red light, the second first-color light may be green light, and the third first-color light may be blue light, but the disclosed embodiments are not limited thereto.

[0421] In addition to the light-emitting device as described above, the light-emitting device may further include a thin-film transistor. The thin-film transistor may include a source electrode, a drain electrode, and an active layer, wherein any one of the source electrode and the drain electrode may be electrically connected to any one of the first electrode and the second electrode of the light-emitting device.

[0422] The thin-film transistor may further include a gate electrode, a gate insulating layer, and the like.

[0423] The active layer may include crystalline silicon, amorphous silicon, an organic semiconductor, an oxide semiconductor, etc., but the disclosed embodiments are not limited thereto.

[0424] The light-emitting device may further include a sealing portion for sealing the light-emitting device. The sealing portion may be located between the color filter and the light-emitting device. The sealing portion allows the light from the light-emitting device to be extracted to the outside while concurrently (e.g., simultaneously) preventing external air and moisture from penetrating into the light-emitting device. The sealing portion may be a sealing substrate including a transparent glass or plastic substrate. The sealing portion may be a thin-film encapsulation layer including an organic layer and / or an inorganic layer. When the sealing portion is a thin-film encapsulation layer, the light-emitting device may be flexible.

[0425] The light-emitting device may be used as various displays, light sources, etc.

[0426] The authentication device may be, for example, a biometric authentication device for authenticating an individual by using biometric information of a biometric body (e.g., a fingertip, a pupil, etc.).

[0427] In addition to the light-emitting device, the authentication device may further include a biometric information collector.

[0428] The electronic device may be applied to a personal computer (e.g., a mobile personal computer), a mobile phone, a digital camera, an electronic notepad, an electronic dictionary, an electronic game console, a medical instrument (e.g., an electronic thermometer, a blood pressure monitor, a blood glucose meter, a pulse measurement device, a pulse wave measurement device, an electrocardiogram (ECG) monitor, an ultrasonic diagnostic device, or an endoscope monitor), a fish finder, various measuring instruments, meters (e.g., meters for vehicles, airplanes, and ships), a projector, etc., but the disclosed embodiments are not limited thereto.

[0429] [Manufacturing method]

[0430] Layers constituting the hole transport region, the emission layer, and the layers constituting the electron transport region can be formed in a specific region by using one or more suitable methods selected from vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB) deposition, inkjet printing, laser printing, and laser-induced thermal imaging.

[0431] When forming the layers constituting the hole transport region, the emission layer, and the layers constituting the electron transport region by vacuum deposition, considering the materials to be included in the layer to be formed and the structure of the layer to be formed, vacuum deposition can be performed at a deposition temperature of about 100 °C to about 500 °C, a degree of vacuum of about 10 -8 Torr to about 10 -3 Torr, and a deposition rate of about / s to about / s.

[0432] When forming the layers constituting the hole transport region, the emission layer, and the layers constituting the electron transport region by spin coating, considering the materials to be included in the layer to be formed and the structure of the layer to be formed, spin coating can be performed at a coating speed of about 2,000 rpm to about 5,000 rpm and at a heat treatment temperature of about 80 °C to about 200 °C.

[0433] [Definition of substituents]

[0434] As used herein, the term "C 1 -C 60 alkyl" refers to a straight-chain or branched-chain aliphatic saturated hydrocarbon monovalent group having 1 to 60 carbon atoms, examples of which are methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, n-hexyl, isohexyl, sec-hexyl, tert-hexyl, n-heptyl, isoheptyl, sec-heptyl, tert-heptyl, n-octyl, isooctyl, sec-octyl, tert-octyl, n-nonyl, isononyl, sec-nonyl, tert-nonyl, n-decyl, isodecyl, sec-decyl, and tert-decyl. As used herein, the term "C 1 -C 60 alkylene" refers to a divalent group having the same structure as C 1 -C 60 alkyl.

[0435] As used herein, the term "C 2 -C 60 alkenyl" refers to a monovalent hydrocarbon group having at least one carbon-carbon double bond at the middle or end of C 2 -C 60 alkyl, examples of which include vinyl, propenyl, and butenyl. As used herein, the term "C2 -C 60 "Vinylene" refers to a divalent group having the same structure as C 2 -C 60 alkenyl.

[0436] As used herein, the term "C 2 -C 60 alkynyl" refers to a monovalent hydrocarbon group having at least one carbon-carbon triple bond at the middle or end of C 2 -C 60 alkyl, examples of which include ethynyl and propynyl. As used herein, the term "C 2 -C 60 "alkynylene" refers to a divalent group having the same structure as C 2 -C 60 alkynyl.

[0437] As used herein, the term "C 1 -C 60 alkoxy" refers to a monovalent group represented by -OA 101 (wherein A 101 is C 1 -C 60 alkyl), examples of which include methoxy, ethoxy and isopropoxy.

[0438] As used herein, the term "C 3 -C 10 cycloalkyl" refers to a monovalent saturated hydrocarbon ring group having 3 to 10 carbon atoms, examples of which are cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, adamantyl, norbornyl, bicyclo[1.1.1]pentyl, bicyclo[2.1.1]hexyl, bicyclo[2.2.1]heptyl and bicyclo[2.2.2]octyl. As used herein, the term "C 3 -C 10 cycloalkylene" refers to a divalent group having the same structure as C 3 -C 10 cycloalkyl.

[0439] As used herein, the term "C 1 -C 10 heterocycloalkyl" refers to a monovalent saturated ring group having 1 to 10 carbon atoms containing a heteroatom (e.g., N, O, Si, P, S or any combination thereof) as a ring-forming atom, examples of which are 1,2,3,4-oxadiazolyl, tetrahydrofuryl and tetrahydrothienyl. As used herein, the term "C 1 -C 10 heterocycloalkylene" refers to a divalent group having the same structure as C 1 -C 10 heterocycloalkyl.

[0440] As used herein, the term "C 3 -C 10 cycloalkenyl" means a monovalent hydrocarbon ring group having 3 to 10 carbon atoms and at least one carbon-carbon double bond in its ring and not having aromaticity, non-limiting examples of which include cyclopentenyl, cyclohexenyl, and cycloheptenyl. As used herein, the term "C 3 -C 10 subcycloalkenyl" means a divalent group having the same structure as C 3 -C 10 cycloalkenyl.

[0441] As used herein, the term "C 1 -C 10 heterocycloalkenyl" means a monovalent ring group having 1 to 10 carbon atoms and containing a heteroatom (e.g., N, O, Si, P, S, or any combination thereof) as a ring-forming atom, wherein the ring has at least one double bond. Examples of C 1 -C 10 heterocycloalkenyl include 4,5-dihydro-1,2,3,4-oxadiazolyl, 2,3-dihydrofuryl, and 2,3-dihydrothienyl. As used herein, the term "C 1 -C 10 subheterocycloalkenyl" means a divalent group having the same structure as C 1 -C 10 heterocycloalkenyl.

[0442] As used herein, the term "C 6 -C 60 aryl" means a monovalent group having a carbocyclic aromatic system including 6 to 60 carbon atoms, and as used herein, the term "C 6 -C 60 subaryl" means a divalent group having a carbocyclic aromatic system including 6 to 60 carbon atoms. Examples of C 6 -C 60 aryl are phenyl, cyclopentadienyl, naphthyl, azulyl, indacenyl, acenaphthylenyl, phenalenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, heptacenyl, tetraphenyl, picenyl, hexaphenyl, pentaphenyl, rubicenyl, coronenyl, and ovalenyl. When both C 6 -C 60 aryl and C 6 -C 60 subaryl include two or more rings, the two or more rings may be fused to each other.

[0443] As used herein, the term "C 1 -C 60"Heteroaryl" refers to a monovalent heteroaromatic system group having heteroatoms (e.g., N, O, Si, P, S, or any combination thereof) as ring atoms and from 1 to 60 carbon atoms. As used herein, the term "C" 1 -C 60 "Heteroarylene" refers to a divalent heteroaromatic system group having heteroatoms (e.g., N, O, Si, P, S, or any combination thereof) as ring atoms and from 1 to 60 carbon atoms. C 1 -C 60 Examples of heteroaryl include pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, benzoquinolinyl, isoquinolinyl, benzoisoquinolinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthrolinyl, phthalazinyl, and naphthyridinyl. When C 1 -C 60 heteroaryl and C 1 -C 60 heteroarylene each include two or more rings, the two or more rings may be fused to each other.

[0444] As used herein, the term "C" 6 -C 60 "Aryloxy" refers to -OA 102 (wherein A 102 is C 6 -C 60 aryl), and as used herein, the term "C" 6 -C 60 "Arylthio" refers to -SA 103 (wherein A 103 is C 6 -C 60 aryl).

[0445] As used herein, the term "monovalent non-aromatic fused polycyclic group" refers to a monovalent group having two or more rings fused to each other, only carbon atoms (e.g., having from 8 to 60 carbon atoms) as ring atoms, and not having aromaticity in its entire molecular structure. Examples of monovalent non-aromatic fused polycyclic groups include indenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, indeno[1,2,3-cd]phenanthrenyl, and indeno[1,2,3-cd]anthracenyl. As used herein, the term "divalent non-aromatic fused polycyclic group" refers to a divalent group having the same structure as the monovalent non-aromatic fused polycyclic group.

[0446] As used herein, the term "monovalent non-aromatic fused heterocyclic group" refers to a monovalent group in which two or more rings are fused to each other, including heteroatoms other than carbon (e.g., N, O, Si, P, and S or any combination thereof) as ring-forming atoms and having no aromaticity in its entire molecular structure. Examples of the monovalent non-aromatic fused heterocyclic group include pyrrolyl, thienyl, furyl, indolyl, benzindolyl, naphthylindolyl, isoindolyl, benzisoindolyl, naphthylisoindolyl, benzosilolyl, benzothienyl, benzofuryl, carbazolyl, dibenzosilolyl, dibenzothienyl, dibenzofuryl, azacarbazolyl, azafuryl, azadibenzosilolyl, azadibenzothienyl, azadibenzofuryl, pyrazolyl, imidazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl, benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, benzoxadiazolyl, benzothiadiazolyl, imidazopyridyl, imidazopyrimidyl, imidazotriazinyl, imidazopyrazinyl, imidazopyridazinyl, indolocarbazolyl, indolocarbazolyl, benzofurocarbazolyl, benzothienocarbazolyl, benzosilolocarbazolyl, benzindolocarbazolyl, benzocarbazolyl, benzonaphthofuryl, benzonaphthothienyl, benzonaphthosilolyl, benzofurodibenzofuryl, benzofurodibenzothienyl, and benzothienodibenzothienyl. As used herein, the term "divalent non-aromatic fused heterocyclic group" refers to a divalent group having the same structure as the monovalent non-aromatic fused heterocyclic group.

[0447] As used herein, the term "C 5 -C 60 carbocyclic group" refers to a monocyclic or polycyclic group that includes only carbon as ring-forming atoms and consists of 5 to 60 carbon atoms. C 5 -C 60 The carbocyclic group can be an aromatic carbocyclic group or a non-aromatic carbocyclic group. C 5 -C 60 The carbocyclic group can be a compound (such as benzene), a monovalent group (such as phenyl), or a divalent group (such as phenylene). In one or more embodiments, depending on the number of substituents attached to the C 5 -C 60 carbocyclic group, the C 5 -C 60 carbocyclic group can be a trivalent or tetravalent group. As used herein, the term "C 3 -C 60 carbocyclic group" has the same definition as C 5 -C 60 carbocyclic group.

[0448] C 5 -C 60Examples of carbocyclic groups are cyclopentadienyl, phenyl, indenyl, naphthyl, azulyl, indacenyl, acenaphthylenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, heptacenyl, tetracenyl, picenyl, hexaphenyl, pentaphenyl, rubicenyl, coronenyl, ovalenyl, indenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, indenophenanthrenyl, and indenanthracenyl.

[0449] As used herein, the term "C 1 -C 60 heterocyclic group" refers to a monocyclic or polycyclic group that includes from 1 to 60 carbon atoms and heteroatoms (e.g., N, O, Si, P, S, or any combination thereof) other than carbon (the number of carbon atoms can be from 1 to 60) as ring-forming atoms. C 1 -C 60 The heterocyclic group can be an aromatic heterocyclic group or a non-aromatic heterocyclic group. C 1 -C 60 The heterocyclic group can be a compound (such as pyridine), a monovalent group (such as pyridyl), or a divalent group (such as pyridylene). In one or more embodiments, depending on the number of substituents attached to the C 1 -C 60 heterocyclic group, the C 1 -C 60 heterocyclic group can be a trivalent or tetravalent group.

[0450] C 1 -C 60Examples of the heterocyclic group include pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, benzoquinolinyl, isoquinolinyl, benzoisoquinolinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthrolinyl, phthalazinyl, naphthyridinyl, pyrrolyl, thienyl, furyl, indolyl, benzindolyl, naphthylindolyl, isoindolyl, benzoisoindolyl, naphthylisoindolyl, benzosilolyl, benzothienyl, benzofuryl, carbazolyl, dibenzosilolyl, dibenzothienyl, dibenzofuryl, azacarbazolyl, azafuryl, azadibenzosilolyl, azadibenzothienyl, azadibenzofuryl, pyrazolyl, imidazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl, benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, benzoxadiazolyl, benzothiadiazolyl, imidazopyridyl, imidazopyrimidinyl, imidazotriazinyl, imidazopyrazinyl, imidazopyridazinyl, indolocarbazolyl, indolocarbazolyl, benzofurocarbazolyl, benzothienocarbazolyl, benzosilolocarbazolyl, benzindolocarbazolyl, benzocarbazolyl, benzonaphthofuryl, benzonaphthothienyl, benzonaphthosilolyl, benzofurodibenzofuryl, benzofurodibenzothienyl, and benzothienodibenzothienyl.

[0451] Substituted C 5 -C 60 Carbocyclic group, substituted C 1 -C 60 Heterocyclic group, substituted C 1 -C 60 Alkylene group, substituted C 2 -C 60 Alkenylene group, substituted C 3 -C 10 Substituted cycloalkylene group, substituted C 1 -C 10 Substituted heterocycloalkylene group, substituted C 3 -C 10 Substituted cycloalkenylene group, substituted C 1 -C 10 Substituted heteroalkenylene group, substituted C 6 -C 60 Substituted arylene group, substituted C 1 -C 60 Substituted heteroarylene group, substituted divalent non-aromatic condensed polycyclic group, substituted divalent non-aromatic condensed heteropolycyclic group, substituted C 1 -C 60 Alkyl group, substituted C 2 -C 60 Alkenyl group, substituted C 2 -C 60 Alkynyl group, substituted C 1 -C60 Alkoxy, substituted C 3 -C 10 Cycloalkyl, substituted C 1 -C 10 Heterocycloalkyl, substituted C 3 -C 10 Cycloalkenyl, substituted C 1 -C 10 Heterocycloalkenyl, substituted C 6 -C 60 Aryl, substituted C 6 -C 60 Aryloxy, substituted C 6 -C 60 Arylthio, substituted C 1 -C 60 The substituents in heteroaryl, substituted monovalent non-aromatic condensed polycyclic groups and substituted monovalent non-aromatic condensed heteropolycyclic groups can be:

[0452] Deuterium (-D), -F, -Cl, -Br, -I, hydroxyl, cyano or nitro;

[0453] Unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 ) and -P(=O)(Q 11 )(Q 12 ) of at least one of the C 1 -C 60Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy;

[0454] unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 ) and -P(=O)(Q 21 )(Q 22 ) of at least one of C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group or monovalent non-aromatic fused heteropolycyclic group;

[0455] -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) or -P(=O)(Q 31 )(Q 32 ); or

[0456] Any combination thereof.

[0457] As used herein, Q 11 to Q 13 , Q 21 to Q 23 and Q 31 to Q 33 can each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl or terphenyl.

[0458] As used herein, the term "Ph" refers to phenyl, the term "Me" refers to methyl, the term "Et" refers to ethyl, the term "tert-Bu" or "Bu t”The term "t-Bu" refers to tert-butyl, and the term "OMe" as used herein refers to methoxy.

[0459] The term "biphenyl" as used herein refers to "phenyl substituted with phenyl". In other words, "biphenyl" is a substituted phenyl having C 6 -C 60 aryl as a substituent.

[0460] The term "terphenyl" as used herein refers to "phenyl substituted with biphenyl". In other words, "terphenyl" is a substituted phenyl having a C 6 -C 60 aryl-substituted C 6 -C 60 aryl as a substituent.

[0461] Unless otherwise defined, *, *', and *" as used herein all refer to the bonding positions to adjacent atoms in the corresponding formula.

[0462] Hereinafter, the compounds according to the embodiments and the light-emitting devices according to the embodiments will be described in detail with reference to the synthesis examples and examples. The expression "using B instead of A" used in the description of the synthesis examples means using the same molar equivalent of B instead of A.

[0463] [Examples]

[0464] Preparation of Polymer

[0465] Preparation of Compound 1

[0466]

[0467] Under a nitrogen atmosphere, intermediate A (2.4 g, 4 mmol), intermediate B (1.4 g, 4 mmol), tris(dibenzylideneacetone)dipalladium(0) (183 mg, 0.05 eq), 1,1'-bis(diphenylphosphino)ferrocene (55.4 mg, 0.1 equivalent), and sodium tert-butoxide (1.2 g, 12 mmol) were added to toluene (80 ml), and the mixture was refluxed at 80 °C for 24 hours. After completion of the reaction, methanol was poured into the reaction mixture to perform filtration, thereby obtaining a polymer.

[0468] The obtained polymer was dissolved again in toluene (20 ml), and bromobenzene (0.16 g, 1 mmol), tris(dibenzylideneacetone)dipalladium(0) (46 mg, 0.05 eq), 1,1'-bis(diphenylphosphino)ferrocene (14 mg, 0.1 eq) and sodium tert-butoxide (0.4 g, 4 mmol) were added thereto, and the mixture was refluxed at 80 °C for 4 hours. N,N-dianiline (0.17 g, 1 mmol) was added thereto, and the mixture was refluxed again at 80 °C for 4 hours. After completion of the reaction, methanol was poured into the mixture for filtration to obtain a polymer with end-capping.

[0469] The purified polymer was obtained by column chromatography. (0.55 g)

[0470] Weight-average molecular weight (Mw) = 150,000

[0471] Preparation of Compound 2

[0472]

[0473] Compound 2 was obtained in the same manner as for the synthesis of Compound 1, except that intermediate C was used instead of intermediate A. (0.5 g)

[0474] Weight-average molecular weight (Mw) = 150,000

[0475] Preparation of Compound 17

[0476]

[0477] Compound 17 was obtained in the same manner as for the synthesis of Compound 1, except that intermediate C was used instead of intermediate A and intermediate D was used instead of intermediate B. (0.3 g)

[0478] Weight-average molecular weight (Mw) = 100,000

[0479] Preparation of Compound 18

[0480]

[0481] Compound 18 was obtained in the same manner as for the synthesis of Compound 1, except that intermediate E was used instead of intermediate A and intermediate D was used instead of intermediate B. (0.33 g)

[0482] Weight-average molecular weight (Mw) = 100,000

[0483] Preparation of Ink

[0484] 1. Preparation of Ink 1

[0485] Mix polymer 1 with a molecular weight of 150,000 and low-molecular-weight material compound A1 in a weight ratio of 8:2, and use anisole as a solvent to complete the preparation of Ink 1.

[0486] 2. Preparation of Ink 2

[0487] Prepare Ink 2 in the same manner as for the preparation of Ink 1, except that compound 2 with a molecular weight of 150,000 is used instead of compound 1 with a molecular weight of 150,000.

[0488] 3. Preparation of Ink 3

[0489] Prepare Ink 3 in the same manner as for the preparation of Ink 1, except that compound 17 with a molecular weight of 100,000 is used instead of compound 1 with a molecular weight of 150,000, and low-molecular-weight material compound A2 is used instead of low-molecular-weight material compound A1.

[0490] 4. Preparation of Ink 4

[0491] Prepare Ink 4 in the same manner as for the preparation of Ink 1, except that compound 18 with a molecular weight of 100,000 is used instead of compound 1 with a molecular weight of 150,000, and low-molecular-weight material compound A2 is used instead of low-molecular-weight material compound A1.

[0492] 5. Preparation of Ink 5

[0493] Prepare Ink 5 in the same manner as for the preparation of Ink 1, except that aromatic amine compound EM-1 is used instead of low-molecular-weight material compound A1.

[0494] 6. Preparation of Ink 6

[0495] Prepare Ink 6 in the same manner as for the preparation of Ink 1, except that compound 1 with a molecular weight of 12,000 is used instead of compound 1 with a molecular weight of 150,000.

[0496] 7. Preparation of Ink 7

[0497] Prepare Ink 7 in the same manner as for the preparation of Ink 1, except that compound 50 with a molecular weight of 50,000 is used instead of compound 1 with a molecular weight of 150,000, and compound HL-1 is used instead of low-molecular-weight material compound A1.

[0498] <Compound A1>

[0499]

[0500] <Compound A2>

[0501]

[0502] Compound EM-1

[0503]

[0504] Compound 50

[0505]

[0506] Compound HL-1

[0507]

[0508] Measurement of Solvent Resistance of Organic Film

[0509] Each uses Ink 1 to Ink 7 to fabricate a thin film having the thickness, and each thin film is dried at 230 °C for 30 minutes. Subsequently, the UV measurement area (Measurement Value 1) of each thin film is measured.

[0510] 50 μL of methyl benzoate is dropped onto the top of each thin film, and each thin film is left standing for 30 minutes, and a wiper is used to absorb the solvent into it. Each thin film is left standing at 100 °C for 1 minute, and then its UV measurement area (Measurement Value 2) is measured.

[0511] The remaining film ratio is calculated by the following formula.

[0512] Remaining film ratio = (UV measurement area after standing the solvent for 30 minutes) / (UV measurement area before solvent treatment) = Measurement Value 2 / Measurement Value 1

[0513] When the solvent resistance is high, the difference between Measurement Value 2 and Measurement Value 1 is small or almost non-existent. When the solvent resistance is low, since the solvent dissolves the compound in the organic layer and then the organic layer is lost, Measurement Value 2 becomes lower than Measurement Value 1. Therefore, a high remaining film ratio indicates high solvent resistance.

[0514] The values of the remaining film ratio are shown in Table 1.

[0515] [Table 1]

[0516]

[0517]

[0518] As described in Table 1, the organic layer formed using the composition according to the embodiment including the compound represented by Formula 1 having a molecular weight of 50,000 or more and the non-aromatic amine compound having a molecular weight of 10,000 or less has high solvent resistance.

[0519] Manufacture of Light-Emitting Device

[0520] Example 1

[0521] As the anode, 15 Ω / cm from Corning Incorporated 2 The ITO glass substrate was cut into a size of 50 mm × 50 mm × 0.7 mm, ultrasonically treated with isopropyl alcohol and pure water for 5 minutes each, and cleaned by ultraviolet irradiation and exposure to ozone for 30 minutes. PEDOT-PSS was coated on the substrate and heat-treated at 150 °C for 30 minutes to form a hole injection layer with a thickness of. Ink 1 was inkjet-deposited on the hole injection layer to form a hole transport layer with a thickness of, and it was dried at 230 °C for 30 minutes. By using ink dissolved in methyl benzoate, compound A as the fluorescent host and compound B as the fluorescent dopant were inkjet-deposited on the hole transport layer at a weight ratio of 95:5 to form an emission layer with a thickness of. Compound ET1 was deposited on the emission layer to form an electron transport layer with a thickness of, LiF was deposited on the electron transport layer to form an electron injection layer with a thickness of, and Al was deposited on the electron injection layer to form a second electrode (cathode) with a thickness of, thus completing the fabrication of the light-emitting device.

[0522]

[0523] <et1>

[0524]

[0525] Examples 2 to 4 and Comparative Examples 1 to 3

[0526] In addition to using Inks 2 to 7 described in Table 1 to form the hole transport layer, the light-emitting device is manufactured in the same manner as in Example 1.

[0527] The emission efficiency of each light-emitting device manufactured according to Examples 1 to 4 and Comparative Examples 1 to 3 is measured at 700 nit using a luminance meter PR650, and the results are shown in Table 2.

[0528] [Table 2]

[0529]

[0530] Referring to Table 2, the light-emitting devices manufactured according to Examples 1 to 4 show excellent results compared to the light-emitting devices manufactured according to Comparative Examples 1 to 3 (here, the light-emitting devices manufactured according to Comparative Examples 1 to 3 are inoperable).

[0531] Since the intermediate layer has strong solvent resistance in the solution process, when using the composition, the solution process can be easily applied, and thus a light-emitting device with high-resolution pixels can be easily manufactured.

[0532] It should be understood that the embodiments described herein should be considered only in a descriptive sense and not for purposes of limitation. The description of features or aspects within each embodiment should generally be considered available for other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, those of ordinary skill in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope defined by the claims.

Claims

1. A composition, the composition comprises: a polymer represented by Formula 1; a non-aromatic amine compound; and a solvent: Formula 1 wherein, in Formula 1, X is represented by Formula 1-1, Y is a substituted or unsubstituted phenylene group, a and b respectively refer to the ratio of unit X and unit Y in the polymer represented by Formula 1, a is 0.3 to 0.7, b is 0.7 to 0.3, and the sum of a and b is 1, and the non-aromatic amine compound is any one of the following Compound A1 to Compound A5: Compound A1 Compound A2 Compound A3 Compound A4 Compound A5 Formula 1-1 wherein, in Formula 1-1, X 1 is a substituted or unsubstituted phenylene group, and c is an integer of 2 or greater, and in Formula 1 and Formula 1-1, R 1 and R 2 are each independently any one of Formula 3a to Formula 3e: wherein, in Formula 3a to Formula 3e, R 21 to R 32 are each independently selected from: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group and substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, a21 is an integer from 1 to 5, a24, a26, a28 and a31 are each independently an integer from 1 to 3, a25, a27, a29 and a32 are each independently an integer from 1 to 4, From R 21 to R 32 of the at least one substituent selected from the group consisting of the substituted C 1 -C 60 alkyl, the substituted C 6 -C 60 aryl, the substituted C 1 -C 60 heteroaryl, the substituted monovalent non-aromatic fused polycyclic group, and the substituted monovalent non-aromatic fused heteropolycyclic group is selected from: Deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, and monovalent non-aromatic fused heteropolycyclic group, and * represents the bonding position to an adjacent atom, Ar 1 to Ar 3 are each independently selected from: phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, perylenyl, pentaphenylenyl, hexaphenylenyl and quaterphenylenyl; and All are substituted with at least one selected from phenyl, biphenyl, terphenyl, naphthyl, fluorene, spirobifluorene, benzo[9,10]fluorene, dibenzo[9,10]fluorene, phenanthrene, anthracene, fluoranthene, benzo[9,10]phenanthrene, pyrene, 1 -C 20 alkyl, phenyl, biphenyl, terphenyl, naphthyl, fluorene, spirobifluorene, benzo[9,10]fluorene, dibenzo[9,10]fluorene, phenanthrene, anthracene, fluoranthene, benzo[9,10]phenanthrene, pyrene, group, perylene, pentaphene, hexaphenyl and pentacene phenyl, biphenyl, terphenyl, naphthyl, fluorene, spirobifluorene, benzo[9,10]fluorene, dibenzo[9,10]fluorene, phenanthrene, anthracene, fluoranthene, benzo[9,10]phenanthrene, pyrene, group, perylene, pentaphene, hexaphenyl and pentacene, and at least one substituent selected from the substituted phenylene groups is selected from: Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 alkyl group, C 6 -C 60 aryl group, C 1 -C 60 heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group, the molecular weight of the compound represented by Formula 1 is greater than or equal to 50,000.

2. The composition according to claim 1, wherein, Y in Formula 1 and X in Formula 1-1 1 are each independently a group represented by Formula 2a or Formula 2b: wherein, in Formula 2a and Formula 2b, R 11 to R 15 are each independently selected from: Hydrogen, deuterium, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl; and All are substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ) of at least one selected from C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl, Q 31 to Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, and monovalent non-aromatic fused heteropolycyclic group, and a11 to a15 are each independently an integer from 1 to 4.

3. The composition according to claim 1, wherein, Formula 1 is represented by Formula 3: Formula 3 wherein, in Formula 3, Ar 1 to Ar 3 、R 2 、a and b are the same as those described in Binding Formulas 1 and 1-1, a11, a12, a'11 and a'12 are each independently an integer from 1 to 4, a24 is an integer from 1 to 3, a25 is an integer from 1 to 4, Y 1 is O, S, CR 51 R 52 or NR 53 , R 11 and R 12 and R' 11 and R' 12 are each independently selected from: Hydrogen, deuterium, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl; and All are substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ), and -P(=O)(Q 31 )(Q 32 ), and C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl, Q 31 to Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups, and R 24 、R 25 、R 51 、R 52 and R 53 are each independently selected from: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group and substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, From R 24 , R 25 , R 51 , R 52 and R 53 of the substituted C 1 -C 60 alkyl, the substituted C 6 -C 60 aryl, the substituted C 1 -C 60 heteroaryl, the substituted monovalent non-aromatic fused polycyclic group, and the substituted monovalent non-aromatic fused heteropolycyclic group, at least one substituent selected from: Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 alkyl group, C 6 -C 60 aryl group, C 1 -C 60 heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group.

4. The composition according to claim 1, wherein, Formula 1 is represented by Formula 4: Formula 4 wherein, in Formula 4, Ar 1 to Ar 3 、R 2 、a and b are the same as those described in Formulas 1 and 1-1, a'11, a'12, a13, a14 and a15 are each independently an integer from 1 to 4, a24 is an integer from 1 to 3, a25 is an integer from 1 to 4, Y 1 is O, S, CR 51 R 52 or NR 53 , R 13 , R 14 and R 15 and R' 11 and R' 12 are independently selected from: Hydrogen, deuterium, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl; and All are substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ), and -P(=O)(Q 31 )(Q 32 ) of C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl, Q 31 to Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups, and R 24 、R 25 、R 51 、R 52 and R 53 are each independently selected from: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group and substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, From R 24 、R 25 、R 51 、R 52 and R 53 of the said substituted C 1 -C 60 alkyl, the said substituted C 6 -C 60 aryl, the said substituted C 1 -C 60 heteroaryl, the said substituted monovalent non-aromatic fused polycyclic group and the said substituted monovalent non-aromatic fused heteropolycyclic group, at least one substituent selected from: Deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic condensed polycyclic group, and monovalent non-aromatic condensed heteropolycyclic group.

5. The composition according to claim 1, wherein, Formula 1 is represented by Formula 5: Formula 5 wherein, in Formula 5, Ar 1 to Ar 3 、R 2 , a and b are the same as those described in Formula 1 and Formula 1-1, a13 to a15 and a'13 to a'15 are each independently an integer from 1 to 4, a24 is an integer from 1 to 3, a25 is an integer from 1 to 4, Y 1 is O, S, CR 51 R 52 or NR 53 , R 13 , R 14 and R 15 and R' 13 , R' 14 and R' 15 are independently selected from: Hydrogen, deuterium, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl; and are each substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ) of C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl, Q 31 to Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups, and R 24 、R 25 、R 51 、R 52 and R 53 are each independently selected from: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, and substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group From R 24 、R 25 、R 51 、R 52 and R 53 of the said substituted C 1 -C 60 alkyl, the said substituted C 6 -C 60 aryl, the said substituted C 1 -C 60 heteroaryl, the said substituted monovalent non-aromatic fused polycyclic group and the said substituted monovalent non-aromatic fused heteropolycyclic group, at least one substituent selected from: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, and monovalent non-aromatic fused heteropolycyclic group.

6. The composition according to claim 1, wherein, Formula 1 is represented by Formula 6: Formula 6 wherein, in Formula 6, Ar 1 to Ar 3 、R 2 、a and b are the same as those described in Formula 1 and Formula 1-1, a11 to a15 are each independently an integer from 1 to 4, a24 is an integer from 1 to 3, a25 is an integer from 1 to 4, Y 1 is O, S, CR 51 R 52 or NR 53 and R 11 to R 15 are each independently selected from: Hydrogen, deuterium, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridyl, imidazopyrimidinyl and azacarbazolyl; and All are substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ), and -P(=O)(Q 31 )(Q 32 ) of C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl, Q 31 to Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 1 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups, and R 24 、R 25 、R 51 、R 52 and R 53 are each independently selected from: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, and substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group From R 24 、R 25 、R 51 、R 52 and R 53 of the substituted C 1 -C 60 alkyl, the substituted C 6 -C 60 aryl, the substituted C 1 -C 60 heteroaryl, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group, at least one substituent selected from: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C 1 -C 60 alkyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, and monovalent non-aromatic fused heteropolycyclic group.

7. The composition according to claim 1, wherein, the polymer represented by Formula 1 is any one of the following Compound 1 to Compound 10 and Compound 13 to Compound 35: wherein, in Compound 1 to Compound 10 and Compound 13 to Compound 35, a and b are the same as those described in connection with Formula 1.

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