85results about How to "Suitable molecular energy level" patented technology

The invention discloses a fluorine-substituted organic micro-molecular hole-transport material and an application thereof. The material provided by the invention has a simple molecular structure, wherein benzodithiophene and derivatives thereof are used as a central core; different heterocycle-containing units are introduced to capping groups; and the central core and the capping groups are linkedby different fluorine-substituted phenyl groups. The material provided by the invention has the advantages of simple synthesis steps, easiness in purification, good solubility in an organic solvent,proper molecular energy levels, high hole mobility and electrical conductivity, and good hydrophobicity, is applied to perovskite solar cells with good stability and high short-circuit current densityand energy conversion efficiency, and has extensive application prospects.

The invention relates to the technical field of organic light-emitting display, particularly discloses an organic material of a compound containing a multi-heterocyclic structure, and also discloses application of the organic material in an organic light-emitting device. The compound containing the multi-heterocyclic structure is shown as general formula (I), can be applied to the field of organicelectroluminescence, and can be used as an electron transport material. The compound with the structure provided by the invention is applied to an OLED device, and the device has the advantages of low driving voltage and high luminous efficiency.

The invention relates to the technical field of organic electroluminescence display, particularly discloses an organic material of a compound containing an SO2 multi-heterocyclic structure, and also discloses application of the organic material in an organic electroluminescence device. The compound containing the SO2 multi-heterocyclic structure provided by the invention is shown as a general formula (I), can be applied to the field of organic electroluminescence, and is used as an electron transport material. The compound with the structure provided by the invention is applied to an OLED device, the driving voltage of the device can be reduced, and the light emitting efficiency of the device is improved.

The invention relates to an organic electroluminescent material, a preparation method and applications thereof. The material is an organic micromolecular material, which takes 1,5-naphthyridine as the center and has a parallel ring structure, and the structure of the material is represented in the description. In the structural formula, the Ar1 and Ar2 individually represent an aromatic ring with/without a substituent or an aromatic heterocyclic ring with/without a substituent, and further represent a benzene ring, naphthalene ring, pyridine, [1,8]naphthyridine, pyrimidine or triazine with/without a substituent, wherein the Ar1 and Ar2 can be same or different. The provided material has a proper molecular energy level and high glass-transition temperature, so the material can be used as a phosphorescent main material and can be used to prepare the functional layer and especially the luminescent layer of an organic electroluminescent device in the organic electroluminescent field.

The invention relates to a bisphenothiazine dioxide derivative and an application thereof, and belongs to the field of organic photoelectric material. Different aryl dibromides are adopted as a parent body and are connected with phenothiazine dioxide to form the bisphenothiazine dioxide derivative; with introduction of -SO2-, the compound has good electron transmission performance, and the electronic affinity of the compound and the stability of the compound in air are improved. The bisphenothiazine dioxide derivative can be used as an OLED luminescent device, is suitable for use as an electron transmission material of a blue fluorescent material and as a green phosphorescence electron transmission material and also has the potential of red color application, so that the bisphenothiazine dioxide derivative can be applied to a red-green-blue tri-phosphor doped main body material and also can be independently used as a hole transmission material, an electron transmission material or a luminescent layer.

The invention relates to a novel compound with a spiral structure. The novel compound has a structure represented by a general formula I which is described in the specification. In the general formulaI, E represents an O, S or Se atom; R1, R2, R3 and R4 each independently represent an H atom or an aromatic group containing n benzene rings and/or aromatic heterocycles and having an electron withdrawing property or neutrality; and n represents an integer in a range of 1-7. A novel material provided by the invention uses the compound with the spiral structure as a mother nucleus and an aromaticcompound as an end group; and an electron donating group or a neutral group with hole transport performance is introduced to the active position of the spiro compound, so a novel OLED material with hole transport performance is obtained. The material has high hole mobility, good film stability, proper molecular energy level and high luminous efficiency, can be applied to the field of organic electroluminescence, and is applicable as a hole transport material.

The invention relates to the technical field of organic electroluminescent display, particularly discloses an organic material of a P-containing polyheterocyclic structure compound, and further discloses an application of the organic material in an organic electroluminescent device. The P-containing polyheterocyclic structure compound provided by the invention is shown as a general formula (I), can be applied to the field of organic electroluminescence, and can be used as an electron transport material. The compound with the structure provided by the invention is applied to an OLED device, andthe device has the advantages of low driving voltage and high luminous efficiency.

The invention relates to the technical field of organic electroluminescent display, particularly discloses an organic material of a compound with a multi-heterocyclic structure, and also discloses anapplication of the organic material in an organic electroluminescent device. The multi-heterocyclic compound provided by the invention is shown as a general formula (I), can be applied to the field oforganic electroluminescence, and can be used as an electron transport material. The multi-heterocyclic compound is applied to an OLED device, wherein the driving voltage of the device can be reduced,and the light emitting efficiency of the device is improved.

The invention relates to the field of organic light emitting diode (OLED) display, in particular to an organic light emitting diode material, a synthetic method thereof and application of the organiclight emitting diode material in devices. The structure of the organic light emitting diode material is shown as the formula I. A fused-ring compound is taken as a center, fluorine-atom-containing aniline is taken as a terminal group, a substituent (8-fluoro-N, 9-diphenyl-9H-carbazol-3-amine) with the hole transfer property is introduced to an active position of a polycyclic aromatic compound, andaccordingly, the novel OLED material with the hole transfer property is obtained. The OLED material has high hole mobility, high film stability and suitable molecular energy level, and can be appliedto the field of organic electroluminescence to serve as a hole transfer material. The general formula I is shown in the description.

The invention discloses an ESIPT luminescent material with a delayed fluorescence property and a preparation method and application thereof. Based on the special property of ESIPT, the luminescent material with the delayed fluorescence property and large Strokes shift is designed and synthesized. Meanwhile, the ESIPT luminescent material has the proper molecular energy level, high luminescent efficiency and a good film forming property, and can serve as a yellow light doping material for preparing a non-energy-transfer type luminescent thin film. In a finished organic electroluminescence device, the ESIPT luminescent material and a subject material do not suffer from energy transfer, proportional control over luminescent peaks of a subject and an object can be achieved by adjusting the doping proportion, and therefore repeatable multi-color luminescent OLEDs with the adjustable chroma are successfully prepared.

The invention belongs to the technical field of photoelectric materials, and particularly relates to an organic photoelectric material and application thereof. The organic photoelectric material has amolecular structure shown as a formula I, wherein, R1 is selected from one of phenyl, alkyl phenyl, biphenyl, naphthyl, phenanthryl, anthryl, fluorenyl and dibenzofuran, R2, R3, R4, R5, R6 and R7 areindependently selected from hydrogen atom, fluorine atom, cyan, isothiocyanate and aromatic heterocyclic radical of 10-50 in carbon atom number and containing at least one of N, S and O. The organicphotoelectric material has high thermostability and high glass transition temperature and can serve as a luminous material to be applied in organic electroluminescence devices, so that maximum currentefficiency of the organic electroluminescence devices is improved, turn-on voltage of the organic electroluminescence devices is lowered, and spectrum covering range of visible light emitted by the organic electroluminescence devices is wide.

The invention discloses an organic electroluminescent material, a preparation method and an application thereof, and belongs to the technical field of organic electroluminescence. The organic electroluminescent material has the molecular structure represented as follows, wherein A is void or is a six-membered carbon ring, X is O, S or CMe2, Ar1 and Ar2 are substituted or non-substituted aryl group and substituted or non-substituted hetero-aryl group. The invention also discloses the preparation method and the application of the organic electroluminescent material. The organic electroluminescent material has good carrier transportation efficiency and thermodynamic stability, excellent film-forming property, proper molecular energy level and high luminescence efficiency, can be used as a blue light doping material and is applied in the field of organic electroluminescence.

The invention relates to an organic photoelectric functional material based on an aromatic ring pyridopyrazine structure as a parent nucleus, and a long-life and high-efficiency organic light-emittingdevice prepared by using the organic photoelectric functional material as an electron transport material and a thermal activation delayed red light guest material, and belongs to the technical fieldof organic photoelectric functional materials. The structural general formula of the material is shown as (I), wherein R1 and R2 are C6-C14 aryl or Ra-substituted C6-C14 aryl, 5-24-membered heteroarylor Ra-substituted 5-24-membered heteroaryl, aromatic amino or Ra-substituted aromatic amino; ring A is a benzene ring group, an acenaphthene ring group, a phenanthrene ring group, or a 1, 10-azaphenanthrene ring group.

The invention relates to the technical field of organic electroluminescent display, particularly discloses a novel organic material with an indenofluoranthene structure, and also discloses an application of the organic material in an organic electroluminescent device. The novel organic material with an indenofluoranthene structure provided by the invention is shown as a general formula (I), the indenofluoranthene structure compound is used as a parent nucleus, and the organic material has high electron mobility, good film stability, proper molecular energy level and good thermal stability, canbe applied to the field of organic electroluminescence, and can be used as an electron transport material. The novel organic material with an indenofluoranthene structure provided by the invention can be well applied to an OLED device, and the device has the advantages of low driving voltage and high luminous efficiency.

The invention relates to the field of organic light-emitting diode (OLED) display, and particularly relates to an organic electroluminescent material and synthesis and application thereof. A general structure formula of the organic electroluminescent material is showed in the specification. According to the organic electroluminescent material provided by the invention, the distance between molecules can be increased, the association between compounds can be prevented and the probability of molecular stacking can be reduced because of methyl groups contained on a specific benzene ring. The organic electroluminescent material is not prone to crystallization during evaporation plating, and has high hole mobility, relatively good film stability and suitable molecular energy levels, so that theorganic electroluminescent material can be applied in OLED field. The organic electroluminescent material can effectively improve the rate of finished products of OLED, reduce the driving voltage, improve the luminescent efficiency and increase the service life when applied to OLED devices. The organic electroluminescent material has broad application prospects.

The invention relates to a spirofluorene dibenzacridine organic electroluminescent material and application thereof. The spirofluorene dibenzacridine organic electroluminescent material is provided with a molecular structure as shown in a formula I, wherein Ar1 and Ar2 are independently selected from hydrogen or aromatic groups. The organic electroluminescent material provided by the invention has a favorable film-forming property and a suitable molecular energy level, is capable of changing electron transition to enable a light-emitting peak position to be adjustable due to introduction of different substituent groups, and is a light-emitting material with good light-emitting efficiency.

The invention relates to the technical field of organic optoelectronic materials, in particular to a 9-alkyl alkenyl-2,7-diaryl fluorene derivate and application of the 9-alkyl alkenyl-2,7-diaryl fluorene derivate to organic electroluminescent materials. The 9-alkyl alkenyl-2,7-diaryl fluorene derivate has the structural formula shown as the accompanying drawing, R1 is aryl or heteroaryl, R2 is aryl or heteroaryl, and R3 is C3 to C12 alkyls. The 9-alkyl alkenyl fluorene derivate provided by the invention has the advantages that an alkyl chain is introduced, the glass-transition temperature of materials is effectively improved, and good light color purity and luminous efficiency are realized during the application to blue organic electroluminescent materials.

The invention belongs to the technical field of screw-ring hole-transporting materials, and in particular relates to a screw-ring hole-transporting material, and a preparation method and application thereof. The screw-ring hole-transporting material has the following structural general formula: FORMULA, where R1 is selected from one of a hydrogen group, a halogen group, a cyano group, C1-10 alkyl, and substituted or unsubstituted C1-12 alkoxy; A is phenylene or naphthylene; R2 and R3 are independently selected from one of phenyl, C7-14 benzene alkyl, C10-60 polycyclic conjugate aryl, and C12-60 aromatic heterocyclic groups containing at least one of N, S and O. The screw-ring hole-transporting material is used for preparing a hole-transporting layer material of an OLED device. The material has excellent heat stability, the glass-transition temperature and the dissolution temperature are high, a good amorphous thin film is easily formed, the material is applied to an electroluminescent device, and a more stable effect and a longer service life can be obtained.