20 results about "Donor group" patented technology

Nonlinear optical chromophore compositions which display lyotropic nematic liquid crystal phases in polar organic solvents and provide a mechanical anisotropic effect allowing for the formation of a non-centrosymmetric chromophore-polymer matrix without the application of an electric field.

This compound is represented by the general formula and has a long emission life. In the general formula, one to three moieties among R1 to R5 are each a donor group, the others are each H, D, a cyano group, an aryl group or an alkyl group, L is a single bond or a linking group, X1 is N or C, and Y is a carbazol-9-yl group or an aryl group.

The present invention relates to polycyclic compounds comprising electron-accepting pyrazine cores and one or more dendron-like donor groups. Such compounds have been shown to have properties advantageous for use in electroluminescent devices such as TADF. Thus, the invention also relates to uses of such compounds in electroluminescent devices, electroluminescent devices comprising such compounds, and methods of manufacturing such electroluminescent devices.

The application discloses a blue fluorescent molecule, which has a D-pi-A structure, contains an oxadiazole as an acceptor group and a phenyl carbazole as a donor group, and connects the acceptor group and the donor group with an aromatic ring having a thermal excitation energy level arrangement characteristic as a pi bridge. The application also provides a preparation method and application of the blue fluorescent molecule. The application uses the aromatic ring having the thermal excitation energy level arrangement characteristic as the pi bridge, reasonably regulates a high-energy excited state of the acceptor by introducing the donor, activates a thermal excitation channel of the molecule, breaks through a limitation of 25% of an excitation utilization rate of a fluorescent material, and thus improves the excitation utilization rate.

The invention belongs to the field of organic photoelectric materials, and discloses preparation and application of a D-pi-A type molecular motor. A molecule composed of a donor and an acceptor between a C = N double bond and a pi bridge has the following structures I and II: # imgabs 0 #, Ar is two donor groups, namely nitrosobenzene and N-(3, 4, 5-trimethoxyphenyl) ethylenediamine, # imgabs 1 #, imino indole and cyano indanone groups are introduced to one end of the donor, and the structure I and the structure II are shown in the specification. A D-pi-A type molecular motor material mainly based on non-radiative transition is constructed, due to the existence of C = N double bonds, a donor rotates to generate light response under illumination, the molecular motor material enables potential energy under the molecular level to be transferred, and the operation of converting absorbed light energy to near-infrared light has great prospects. Macroscopically speaking, the molecular motor is a molecular-level motor capable of converting optical energy into mechanical energy. Therefore, the introduction of C = N double bonds provides possibility for constructing a D-pi-A type molecular motor material which is mainly based on non-radiative transition. A thought is provided for the design of the molecules.

The present disclosure is directed, in general, to (1) nonlinear optical (NLO) chromophores containing 3-aminocyclohex-2-en-l-one based donor groups, including (2) compositions / materials / resistive layers comprising NLO chromophores containing 3-aminocyclohex-2- en-l-one based donor groups, and the methods of making the compositions / materials / resistive layers comprising NLO chromophores containing 3-aminocyclohex-2-en-l-one based donor groups (e.g., methods of drying and / or poling, and the like), (3) uses of NLO chromophores containing 3-aminocyclohex-2-en-l-one based donor groups in electro-optic devices (e.g., EOMs). The nonlinear optical (NLO) chromophores have the following formula (II):

The invention relates to the technical field of organic light-emitting materials, and discloses a stable light-emitting free radical material based on a space-induced energy level inversion effect, the light-emitting free radical material is a light-emitting free radical compound based on a donor-bridging group-free radical structure, and a donor group and a free radical are not directly linked but are close to each other in space. The key properties of the light-emitting free radical material are that a donor group is connected with a free radical through a bridging group, the obtained free radical molecule realizes high-efficiency photoluminescence through space charge transfer, and the special property of energy level inversion is realized through a space induction effect; not only is the molecular stability enhanced, but also the transition path of electrons is optimized, so that the luminescence process is more efficient and stable.

Nonlinear optical chromophore compositions which display lyotropic nematic liquid crystal phases in polar organic solvents and provide a mechanical anisotropic effect allowing for the formation of a non-centrosymmetric chromophore-polymer matrix without the application of an electric field.

The organic light-emitting element using the compound of the following general formula has excellent light-emitting characteristics. R1 to R5 are H, D, an alkyl group, an aryl group, a donor group, a triazinyl group substituted with Ar3 and Ar4, or the like, R2 or R3 is the triazinyl group, or the like, and two or more of R1 to R5 are donor groups; and Ar1 to Ar4 are aryl groups and heteroaryl groups. In this connection, one or more of R1-R5 are donor groups having a fused ring structure having four or more rings, or one or more of Ar1-Ar4 are heteroaryl groups.

The organic light-emitting element using the compound of the following general formula has excellent characteristics. R1-R5 are H, D, a cyano group, an alkyl group, an aryl group or a donor group, more than one is the cyano group, and more than one is the donor group; x1 to X3 are N or C (R); r is H, D or a substituent; one or more of Ar1 and Ar2 is a heteroaryl group bonded via N; and L1 represents a single bond or a linking group. # imgabs0 #

A compound represented by the following general formula has excellent properties. Ar represents an aromatic ring system having 1-4 rings; Don represents a donor group; Acp represents a group that is neither a deuterium atom nor a donor group; R1 and R2 are each an alkyl group, an aryl group or the like; a represents 0 or more; and b represents 1 or more.

An organic light emitting device using a compound of the following general formula has excellent characteristics. R1 to R5 each are H, D, a cyano group, an alkyl group, an aryl group or a donor group, one or more are cyano groups, one or more are donor groups; X1 to X3 each are N or C(R); R is H, D or a substituent; one or more of Ar1 and Ar2 each are a heteroaryl group bonding via N; L1 is a single bond or a linked group.

A method, includes: reacting at least one donor group with at least one protected acceptor group to form a plurality of protecting group-containing OSC polymers; removing the protecting group from the plurality of protecting group-containing OSC polymers to form H-bonding sites; and fusing the H-bonding sites of a first OSC polymer backbone with H-bonding sites of a second OSC polymer backbone to form π-π interactions between conjugated OSC polymers.

The invention relates to a nonlinear optical chromophore having an organic indolizine electron-donating group, having the following general formula (I): D represents an indolizine electron-donating group. N represents an n-bridge between A and D, wherein the n-bridge comprises a carbon chain covalently bound to and separating A and D. A represents an organic electron accepting group having an electron affinity greater than the electron affinity of D. The organic indolizine electron-donating group D has one of the following formulae. Various embodiments of the present invention include a non-linear optochromic group having an indolizine donor group, which has an indolizine donor attached to a pi-bridge group. In various preferred embodiments of the invention, the indolizine donor groups may be substituted or unsubstituted, including hydrogen and alkyl substituents, aryl substituents, and combinations thereof. In certain embodiments of the invention, the substituent moiety in the indolizine donor group may be important for separation. The separation may reduce chromophore-chromophore interactions. Separation may reduce charge transfer between molecules. The separation may increase the maximum applied voltage, which may contribute to better polarization and higher r33.

The present disclosure is directed, in general, to (1) nonlinear optical (NLO) chromophores containing 3-aminocyclohex-2-en-1-one based donor groups, including (2) compositions / materials / resistive layers comprising NLO chromophores containing 3-aminocyclohex-2-en-1-one based donor groups, and the methods of making the compositions / materials / resistive layers comprising NLO chromophores containing 3-aminocyclohex-2-en-1-one based donor groups (e.g., methods of drying and / or poling, and the like), (3) uses of NLO chromophores containing 3-aminocyclohex-2-en-1-one based donor groups in electro-optic devices (e.g., EOMs).

The compound of the following general formula has excellent light emission characteristics. R1 to R5 are H, D, an alkyl group, an aryl group, a donor group, a triazinyl group substituted with Ar3 and Ar4, or the like, R2 or R3 is the triazinyl group, or the like, and two or more of R1 to R5 are donor groups; and Ar1 to Ar4 are aryl groups and heteroaryl groups. In this connection, one or more of R1-R5 are donor groups having a fused ring structure having four or more rings, or one or more of Ar1-Ar4 are heteroaryl groups.

The invention provides a phenoxazine modification-based cuprous iodide cluster material as well as a preparation method and application thereof, and belongs to the technical field of luminescent materials. According to the four cuprous iodide cluster materials based on phenoxazine modification provided by the invention, the cuprous iodide cluster modified by phenoxazine and the cubic alkane cluster modified by an asymmetric single donor for improving molecular rigidity are used for regulating and controlling the composition of an excited state and enhancing a ligand-related charge transfer effect. The asymmetric structure prevents mutual accumulation among molecules and inhibits quenching. The dibenzofuran functional group is high in molecular rigidity and has a plurality of modification sites, diphenylphosphine is introduced into 4 and 6 sites, and the distance between P and P can just accommodate Cu4I4. Phenoxazine or phenyl phenoxazine is used as a strong donor group to regulate and control the composition of an excited state and improve the electrical properties. A diphenylphosphine functional group is used as an anchor point to fix a cluster core and provide a coordination site, and P can be coordinated with Cu. CuX has abundant reserves and is environment-friendly, so that the cluster structure is more diversified, and abundant excited state composition is provided.

The compound represented by general formula (1) has excellent luminescence characteristics. One of R2 or R3 and Z represent a group of general formula (A); one of R1-R5 represents a donor group, and one to two of R1-R5 represent an aryl group; x1 and X2 represent N, C-H, C-CN or the like; ar1 and Ar2 represent an aryl group or a heteroaryl group; l represents a single bond or a linking group.

An organic light emitting device using a compound of the following general formula has excellent characteristics. R1 to R4 each are a hydrogen atom, a deuterium atom, an alkyl group, an aryl group, or a donor group; two or more of R1 to R4 are donor groups, and at least one thereof is a substituted ring-fused carbazol-9-yl group; X1 to X3 each are N or C(R), R is a hydrogen atom, a deuterium atom or a substituent; Ar1 and Ar2 each are an aryl group; L1 is a single bond or a linking group.

The compound represented by the following general formula has a long emission lifetime. 1-3 of R1-R5 are donor groups, the rest are H, D, cyano, aryl or alkyl, L is a single bond or a linking group, X1 is N or C, and Y is carbazole-9-yl or aryl.