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CN-117777158-B - Organic compound, organic electroluminescent device and electronic device

CN117777158BCN 117777158 BCN117777158 BCN 117777158BCN-117777158-B

Abstract

The application belongs to the technical field of organic electroluminescence, and relates to an organic compound, an organic electroluminescent device and an electronic device using the same, the organic compound has a structure shown in a formula 1, and can be used in an organic electroluminescent device to remarkably improve the performance of the organic electroluminescent device.

Inventors

  • XU XIANBIN
  • YANG LEI

Assignees

  • 陕西莱特光电材料股份有限公司

Dates

Publication Date
20260508
Application Date
20221111

Claims (9)

  1. 1. An organic compound, characterized in that the organic compound has a structure as shown in formula 1: 1 (1) Wherein ring A is a benzene ring or naphthalene ring; X 1 is O, X 2 is ; L 1 、L 2 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; The substituents in L 1 、L 2 are the same or different and are each independently selected from deuterium, halogen groups, cyano, methyl, ethyl, n-propyl, isopropyl, tert-butyl or phenyl; L 3 is selected from a single bond, unsubstituted phenylene, unsubstituted naphthylene; L is selected from a single bond, unsubstituted phenylene, unsubstituted naphthylene; Ar 1 、Ar 2 is the same or different and is independently selected from substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted biphenyl, substituted or unsubstituted terphenyl, substituted or unsubstituted phenanthryl, substituted or unsubstituted fluorenyl, substituted or unsubstituted spirobifluorenyl, substituted or unsubstituted triphenylene, substituted or unsubstituted carbazolyl, substituted or unsubstituted dibenzofuranyl, and substituted or unsubstituted dibenzothiophenyl; Ar 3 is selected from the group consisting of substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted biphenyl, substituted or unsubstituted terphenyl, and substituted or unsubstituted dibenzofuranyl; substituents in Ar 1 、Ar 2 and Ar 3 are the same or different and are each independently selected from deuterium, methyl, pentadeuterated phenyl or phenyl; Each R 1 and R 2 is the same or different and is each independently selected from deuterium, fluoro, cyano, methyl, ethyl, n-propyl, isopropyl, tert-butyl or phenyl; n 1 represents the number of R 1 , and n 1 is selected from 0; n 2 represents the number of R 2 and n 2 is 0.
  2. 2. The organic compound according to claim 1, wherein the organic compound is selected from the group consisting of compounds represented by formula 1-1, formula 1-2, formula 1-3, and formula 1-4:
  3. 3. The organic compound according to claim 1, wherein, And Each independently selected from the group consisting of: 。
  4. 4. the organic compound according to claim 1, wherein, Selected from the group consisting of: 。
  5. 5. an organic compound, characterized in that the organic compound is selected from the group consisting of: 。
  6. 6. The organic electroluminescent device is characterized by comprising an anode and a cathode which are oppositely arranged, and a functional layer arranged between the anode and the cathode; The functional layer contains the organic compound according to any one of claims 1 to 5.
  7. 7. The organic electroluminescent device according to claim 6, wherein the functional layer comprises an organic light-emitting layer, and the organic light-emitting layer comprises the organic compound.
  8. 8. The organic electroluminescent device of claim 6, wherein the organic electroluminescent device is a red organic electroluminescent device.
  9. 9. An electronic device comprising the organic electroluminescent device as claimed in any one of claims 6 to 8.

Description

Organic compound, organic electroluminescent device and electronic device Technical Field The application relates to the technical field of organic compounds, in particular to an organic compound, an organic electroluminescent device and an electronic device containing the organic compound. Background With the development of electronic technology and the advancement of material science, the range of applications of electronic components for realizing electroluminescence is becoming wider and wider. Such electronic components typically include oppositely disposed cathodes and anodes, and a functional layer disposed between the cathodes and anodes. The functional layer is composed of a plurality of organic or inorganic film layers, and generally includes an organic light emitting layer, a hole transport layer between the organic light emitting layer and the anode, and an electron transport layer between the organic light emitting layer and the cathode. Taking an organic electroluminescent device as an example, it generally includes an anode, a hole transport layer, an organic light emitting layer, an electron transport layer, and a cathode, which are sequentially stacked. 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 organic light-emitting layer under the action of the electric field, holes at the anode side also move to the organic light-emitting layer, the electrons and the holes are combined in the organic light-emitting layer to form excitons, and the excitons are in an excited state to release energy outwards, so that the organic light-emitting layer emits light outwards. The prior art discloses host materials that can be used to prepare organic light emitting layers in organic electroluminescent devices. However, there remains a need to continue to develop new materials to further improve the performance of electronic components. Disclosure of Invention In order to solve the above problems, the present application aims to provide an organic compound, which can improve the performance of an organic electroluminescent device and an electronic apparatus, for example, reduce the driving voltage of the device, and increase the efficiency and lifetime of the device, and an organic electroluminescent device and an electronic apparatus including the organic compound. According to a first aspect of the present application, there is provided an organic compound having a structure as shown in formula 1: 1 (1) Wherein ring A is a benzene ring or naphthalene ring; X 1 is O, S or X 2 is O, S orAnd one of X 1 and X 2 is O or S, the other is; L 1、L2 and L 3 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, and a substituted or unsubstituted heteroarylene group having 3 to 30 carbon atoms; l is selected from a substituted or unsubstituted arylene group having 6 to 30 carbon atoms and a substituted or unsubstituted heteroarylene group having 3 to 30 carbon atoms; ar 1、Ar2 and Ar 3 are the same or different and are each independently selected from a substituted or unsubstituted aryl group having 6 to 40 carbon atoms and a substituted or unsubstituted heteroaryl group having 3 to 40 carbon atoms; L, L 1、L2、L3、Ar1、Ar2 and Ar 3 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, deuterated alkyl having 1 to 10 carbon atoms, aryl having 6 to 20 carbon atoms, deuterated aryl having 6 to 20 carbon atoms, halogenated aryl having 6 to 20 carbon atoms, heteroaryl having 5 to 20 carbon atoms, cycloalkyl having 3 to 10 carbon atoms; optionally, any two adjacent substituents form a ring; Each R 1 and R 2 is the same or different and is independently selected from deuterium, a halogen group, a cyano group, an alkyl group having 1 to 5 carbon atoms, a haloalkyl group having 1 to 5 carbon atoms, a deuterated alkyl group having 1 to 5 carbon atoms, an aryl group having 6 to 18 carbon atoms, a deuterated aryl group having 6 to 18 carbon atoms, a heteroaryl group having 5 to 18 carbon atoms or a cycloalkyl group having 3 to 10 carbon atoms; n 1 represents the number of R 1, n 1 is selected from 0, 1, 2, 3, 4, 5 or 6, and when n 1 is greater than 1, each R 1 is the same or different; n 2 represents the number of R 2, n 2 is selected from 0, 1,2,3 or 4, and when n 2 is greater than 1, each R 2 is the same or different. 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. According to a third aspect of the present application, there is provided an electronic device comprisin