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CN-122010971-A - Organic compound, organic electroluminescent device and electronic device

CN122010971ACN 122010971 ACN122010971 ACN 122010971ACN-122010971-A

Abstract

The application relates to the technical field of organic electroluminescent materials, and provides an organic compound, an organic electroluminescent device comprising the same and an electronic device. When the compound disclosed by the application is used as a main material of a luminescent layer, the carrier balance in the luminescent layer can be improved, the carrier recombination region can be widened, the exciton generation and utilization efficiency can be improved, and the luminescent efficiency and the service life of the device can be improved.

Inventors

  • XU XIANBIN
  • YANG LEI

Assignees

  • 陕西莱特光电材料股份有限公司

Dates

Publication Date
20260512
Application Date
20241111

Claims (13)

  1. 1. An organic compound, characterized in that the organic compound has a structure represented by formula 1: Wherein X 1 and X 2 are the same or different and are each independently selected from O or S; R 1 、R 2 and R 3 are the same or different and are each independently selected from hydrogen, deuterium, cyano, halogen, alkyl of 1 to 10 carbon atoms, haloalkyl of 1 to 10 carbon atoms, deuteroalkyl of 1 to 10 carbon atoms, trialkylsilyl of 3 to 12 carbon atoms, aryl of 6 to 18 carbon atoms, deuteroaryl of 6 to 18 carbon atoms, heteroaryl of 3 to 12 carbon atoms, or The structure shown, and one and only one of each R 1 、R 2 and R 3 is selected from The structure is shown; n 1 represents the number of R 1 , n 2 represents the number of R 2 , n 3 represents the number of R 3 , n 1 is selected from 1,2, 3,4, 5 or 6, n 2 is selected from 1,2, 3 or 4, and n 3 is selected from 1,2, 3 or 4; A is selected from formula 2-1 or formula 2-2: L, L 1 、L 2 、L 3 and L 4 are the same or different and are each independently selected from a single bond, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroarylene group having 3 to 30 carbon atoms; L, L 1 、L 2 、L 3 and L 4 are the same or different and are each independently selected from deuterium, cyano, halogen, alkyl having 1 to 10 carbon atoms, haloalkyl having 1 to 10 carbon atoms, deuteroalkyl having 1 to 10 carbon atoms, trialkylsilyl having 3 to 12 carbon atoms, aryl having 6 to 18 carbon atoms, deuteroaryl having 6 to 18 carbon atoms, heteroaryl having 3 to 12 carbon atoms, cycloalkyl having 5 to 10 carbon atoms; ar 1 、Ar 2 、Ar 3 and Ar 4 are the same or different and are each independently selected from a substituted or unsubstituted aryl group having 6 to 30 carbon atoms and a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms; Ar 1 、Ar 2 、Ar 3 and Ar 4 are the same or different in substituent groups, and are each independently selected from deuterium, cyano, halogen groups, alkyl groups with 1-10 carbon atoms, haloalkyl groups with 1-10 carbon atoms, deuterated alkyl groups with 1-10 carbon atoms, trialkylsilyl groups with 3-12 carbon atoms, aryl groups with 6-18 carbon atoms, deuterated aryl groups with 6-18 carbon atoms, heteroaryl groups with 3-12 carbon atoms or cycloalkyl groups with 5-10 carbon atoms, and optionally any two adjacent substituent groups form a saturated or unsaturated 5-13 membered ring.
  2. 2. The organic compound according to claim 1, wherein Ar 1 、Ar 2 、Ar 3 and Ar 4 are the same or different and are each independently selected from the group consisting of substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted terphenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted anthryl, substituted or unsubstituted phenanthryl, substituted or unsubstituted fluorenyl, substituted or unsubstituted spirobifluorenyl, substituted or unsubstituted triphenylenyl, substituted or unsubstituted pyrenyl, substituted or unsubstituted perylene, substituted or unsubstituted A group, a substituted or unsubstituted benzo [ c ] phenanthryl group, a substituted or unsubstituted dibenzothienyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted naphthobenzofuranyl group, a substituted or unsubstituted phenanthrobenzofuranyl group; Alternatively, the substituents in Ar 1 、Ar 2 、Ar 3 and Ar 4 are each independently selected from deuterium, fluoro, cyano, tridentate methyl, trimethylsilyl, trifluoromethyl, cyclopentyl, cyclohexyl, adamantyl, methyl, ethyl, isopropyl, t-butyl, phenyl, naphthyl, pyridinyl, dibenzofuranyl, dibenzothienyl, or carbazolyl, optionally any two adjacent substituents form a benzene ring or fluorene ring.
  3. 3. The organic compound of claim 1, wherein L, L 1 、L 2 、L 3 and L 4 are the same or different and are each independently selected from a single bond, a substituted or unsubstituted phenylene, a substituted or unsubstituted naphthylene, a substituted or unsubstituted biphenylene, a substituted or unsubstituted dibenzothienyl, a substituted or unsubstituted dibenzofuranyl, a substituted or unsubstituted fluorenylene, a substituted or unsubstituted phenanthrylene, a substituted or unsubstituted carbazolylene; Alternatively, the substituents in L, L 1 、L 2 、L 3 and L 4 are the same or different and are each independently selected from deuterium, fluoro, cyano, methyl, ethyl, isopropyl, tert-butyl, trifluoromethyl, trideuteromethyl, trimethylsilyl or phenyl.
  4. 4. An organic compound according to claim 1, wherein Ar 1 、Ar 2 、Ar 3 and Ar 4 are the same or different and are each independently selected from the group consisting of:
  5. 5. the organic compound according to claim 1, wherein L is selected from a single bond or the following groups: Alternatively, L 1 、L 2 、L 3 and L 4 are the same or different and are each independently selected from the group consisting of a single bond or:
  6. 6. The organic compound according to claim 1, wherein, Identical or different and are each independently selected from the following groups:
  7. 7. the organic compound according to claim 1, wherein formula 2-1 Selected from the following groups: Alternatively, formula 2-2 is selected from the following groups:
  8. 8. the organic compound according to claim 1, wherein L is selected from the group consisting of a single bond or: Alternatively, L 1 、L 2 、L 3 and L 4 are the same or different and are each independently selected from the group consisting of a single bond or:
  9. 9. an organic compound according to claim 1, wherein Ar 1 、Ar 2 、Ar 3 and Ar 4 are the same or different and are each independently selected from the group consisting of:
  10. 10. The organic compound according to claim 1, which is selected from structures represented by formulae (1-1) to (1-8): In the formulae (1-1) to (1-8), X 1 and X 2 are each selected from O, n 4 is selected from 0, 1,2 or 3; Alternatively, each R 1 、R 2 and R 3 is the same or different and is each independently selected from hydrogen, deuterium, cyano, fluoro, methyl, ethyl, isopropyl, tert-butyl, trifluoromethyl, trideuteromethyl, trimethylsilyl or phenyl.
  11. 11. The organic compound according to claim 1, selected from the group consisting of:
  12. 12. An organic electroluminescent device comprising an anode and a cathode which are disposed opposite to each other, and a functional layer disposed between the anode and the cathode, wherein the functional layer comprises the organic compound according to any one of claims 1 to 11; Optionally, the functional layer includes a light emitting layer, the light emitting layer including the organic compound.
  13. 13. An electronic device comprising the organic electroluminescent device as claimed in claim 12.

Description

Organic compound, organic electroluminescent device and electronic device Technical Field The application relates to the technical field of organic electroluminescent materials, in particular to an organic compound, an organic electroluminescent device and an electronic device containing the same. Background Along with the development of electronic technology and the progress of material science, the application range of electronic components for realizing electroluminescence or photoelectric conversion is becoming wider and wider. An organic electroluminescent device (OLED) generally includes a cathode and an anode disposed opposite each other, and a functional layer disposed between the cathode and the anode. The functional layer is composed of a plurality of organic or inorganic film layers, and generally includes an organic light emitting layer, a hole transporting layer, an electron transporting layer, and the like. When voltage is applied to the cathode and the anode, the two electrodes generate an electric field, electrons at the cathode side move to the electroluminescent layer under the action of the electric field, holes at the anode side also move to the luminescent layer, the electrons and the holes are combined in the organic electroluminescent layer to form excitons, and the excitons are in an excited state to release energy outwards, so that the electroluminescent layer emits light outwards. In the existing organic electroluminescent devices, the most important problems are represented by the life and efficiency, and along with the large area of the display, the driving voltage is also improved, and the luminous efficiency and the current efficiency are also required to be improved, so that new materials are required to be continuously researched and developed to further improve the performance of the organic electroluminescent devices. Disclosure of Invention In view of the foregoing problems of the prior art, it is an object of the present application to provide an organic compound, which is used in an organic electroluminescent device and can improve the performance of the device, and an electronic element and an electronic device including the same. According to a first aspect of the present application, there is provided an organic compound having a structure represented by formula 1: Wherein X 1 and X 2 are the same or different and are each independently selected from O or S; R 1、R2 and R 3 are the same or different and are each independently selected from hydrogen, deuterium, cyano, halogen, alkyl of 1 to 10 carbon atoms, haloalkyl of 1 to 10 carbon atoms, deuteroalkyl of 1 to 10 carbon atoms, trialkylsilyl of 3 to 12 carbon atoms, aryl of 6 to 18 carbon atoms, deuteroaryl of 6 to 18 carbon atoms, heteroaryl of 3 to 12 carbon atoms, or The structure shown, and one and only one of each R 1、R2 and R 3 is selected fromThe structure is shown; n 1 represents the number of R 1, n 2 represents the number of R 2, n 3 represents the number of R 3, n 1 is selected from 1,2, 3,4, 5 or 6, n 2 is selected from 1,2, 3 or 4, and n 3 is selected from 1,2, 3 or 4; A is selected from formula 2-1 or formula 2-2: L, L 1、L2、L3 and L 4 are the same or different and are each independently selected from a single bond, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroarylene group having 3 to 30 carbon atoms; L, L 1、L2、L3 and L 4 are the same or different and are each independently selected from deuterium, cyano, halogen, alkyl having 1 to 10 carbon atoms, haloalkyl having 1 to 10 carbon atoms, deuteroalkyl having 1 to 10 carbon atoms, trialkylsilyl having 3 to 12 carbon atoms, aryl having 6 to 18 carbon atoms, deuteroaryl having 6 to 18 carbon atoms, heteroaryl having 3 to 12 carbon atoms, cycloalkyl having 5 to 10 carbon atoms; ar 1、Ar2、Ar3 and Ar 4 are the same or different and are each independently selected from a substituted or unsubstituted aryl group having 6 to 30 carbon atoms and a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms; Ar 1、Ar2、Ar3 and Ar 4 are the same or different in substituent groups, and are each independently selected from deuterium, cyano, halogen groups, alkyl groups with 1-10 carbon atoms, haloalkyl groups with 1-10 carbon atoms, deuterated alkyl groups with 1-10 carbon atoms, trialkylsilyl groups with 3-12 carbon atoms, aryl groups with 6-18 carbon atoms, deuterated aryl groups with 6-18 carbon atoms, heteroaryl groups with 3-12 carbon atoms or cycloalkyl groups with 5-10 carbon atoms, and optionally any two adjacent substituent groups form a saturated or unsaturated 5-13 membered ring. According to a second aspect of the present application, there is provided an organic electroluminescent device comprising an anode and a cathode disposed opposite each other, and a functional layer disposed between the anode and the cathode, the functional layer comprising the above-mentioned organic compound