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CN-117343033-B - Organic compound, and electronic component and electronic device using same

CN117343033BCN 117343033 BCN117343033 BCN 117343033BCN-117343033-B

Abstract

The present invention relates to an organic compound, and an electronic component and an electronic device using the same. The organic compound has a structure shown in a formula I, and can be applied to an organic electroluminescent device to remarkably improve the performance of the device.

Inventors

  • XIN YONGJIE
  • LI YINGWEN
  • ZHANG HEMING

Assignees

  • 陕西莱特光电材料股份有限公司

Dates

Publication Date
20260508
Application Date
20230511

Claims (11)

  1. 1. An organic compound, characterized in that the organic compound has a structure represented by formula I: I is a kind of Wherein X is O, S or N (R 2 ),R 2 is selected from aryl with 6-20 carbon atoms; L, L 1 and L 2 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; Ar 1 and Ar 2 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; Each R 1 is selected from deuterium, fluoro, cyano, trimethylsilyl, trifluoromethyl, methyl, ethyl, isopropyl, t-butyl, or phenyl; n 1 represents the number of R 1 , and n 1 is selected from 0,1, 2, 3,4 or 5; L, L 1 、L 2 、Ar 1 and Ar 2 are the same or different and are each independently selected from deuterium, a halogen group, a cyano group, an alkyl group having 1 to 10 carbon atoms, a haloalkyl group having 1 to 10 carbon atoms, a trialkylsilyl group having 3 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms or a heteroaryl group having 3 to 20 carbon atoms; The heteroaryl refers to a monovalent aromatic ring or derivative thereof containing at least one heteroatom in the ring, the heteroatom being one or more of O, N and S.
  2. 2. An organic compound according to claim 1, wherein R 2 is selected from phenyl, naphthyl or biphenyl.
  3. 3. The organic compound according to claim 1, wherein L, L 1 and L 2 are the same or different and are each independently selected from a single bond, a substituted or unsubstituted arylene group having 6 to 18 carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 18 carbon atoms; L, L 1 and L 2 are the same or different and are each independently selected from deuterium, fluorine, cyano, trifluoromethyl, trimethylsilyl, alkyl having 1 to 5 carbon atoms, or aryl having 6 to 12 carbon atoms.
  4. 4. The organic compound of claim 1, wherein L, L 1 and 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, a substituted or unsubstituted dibenzofuranylene, a substituted or unsubstituted dibenzothienyl, a substituted or unsubstituted carbazolylene; L, L 1 and L 2 are identical or different and are each independently selected from deuterium, fluorine, cyano, trifluoromethyl, trimethylsilyl, methyl, ethyl, isopropyl, tert-butyl or phenyl.
  5. 5. The organic compound according to claim 1, wherein Ar 1 and Ar 2 are the same or different and are each independently selected from a substituted or unsubstituted aryl group having 6 to 25 carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 18 carbon atoms; Substituents in Ar 1 and Ar 2 are the same or different, and are each independently selected from deuterium, fluorine, cyano, trimethylsilyl, trifluoromethyl, alkyl having 1 to 5 carbon atoms, aryl having 6 to 12 carbon atoms, or heteroaryl having 3 to 12 carbon atoms.
  6. 6. The organic compound of claim 1, wherein Ar 1 and Ar 2 are the same or different and are each 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 triphenylene, substituted or unsubstituted spirobifluorene, substituted or unsubstituted dibenzofuranyl, substituted or unsubstituted dibenzothienyl, substituted or unsubstituted carbazolyl; Substituents in Ar 1 and Ar 2 are the same or different and are each independently selected from deuterium, fluoro, cyano, trimethylsilyl, trifluoromethyl, methyl, ethyl, isopropyl, t-butyl, phenyl, naphthyl, biphenyl, dibenzofuranyl, dibenzothienyl or carbazolyl.
  7. 7. An organic compound according to claim 1, wherein Ar 1 and Ar 2 are the same or different and are each independently selected from the group consisting of: 。
  8. 8. the organic compound according to claim 1, wherein the organic compound is selected from the group consisting of:
  9. 9. an electronic component comprising an anode and a cathode 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 8.
  10. 10. The electronic element according to claim 9, wherein the functional layer includes a hole-transporting layer containing the organic compound; The electronic element is an organic electroluminescent device or a photoelectric conversion device; The organic electroluminescent device is a green organic electroluminescent device.
  11. 11. An electronic device, characterized in that it comprises an electronic component according to claim 9 or 10.

Description

Organic compound, and electronic component and electronic device using same Technical Field The present application relates to the field of organic electroluminescence technology, and in particular, to an organic compound, and an electronic element and an electronic device using 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. 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 energy conversion layer, a hole transport layer between the energy conversion layer and the anode, and an electron transport layer between the energy conversion layer and the cathode. Taking an organic electroluminescent device as an example, it generally includes an anode, a hole transport layer, an electroluminescent layer as an energy conversion 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 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 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 prior art, CN115141173A, CN114478270A, KR1020170126400a, et al, discloses materials that can be used 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 The object of the present application is to provide an organic compound, and an electronic component and an electronic device using the same, which can improve the performance of an organic electroluminescent device using the organic compound. A first aspect of the present application provides an organic compound having a structure represented by formula I: Wherein X is O, S or N (R 2),R2 is selected from aryl with 6-20 carbon atoms; L, L 1 and L 2 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; Ar 1 and Ar 2 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; Each R 1 is selected from deuterium, halogen group, cyano, alkyl with 1-10 carbon atoms, haloalkyl with 1-10 carbon atoms, trialkylsilyl with 3-12 carbon atoms, triphenylsilyl, aryl with 6-20 carbon atoms or heteroaryl with 3-20 carbon atoms; n 1 represents the number of R 1, and n 1 is selected from 0,1, 2,3, 4 or 5, optionally, any two adjacent R 1 forms a saturated or unsaturated 5-14 membered ring; l, L 1、L2、Ar1 and Ar 2 are the same or different and are each independently selected from deuterium, a halogen group, a cyano group, an alkyl group having 1 to 10 carbon atoms, a haloalkyl group having 1 to 10 carbon atoms, a trialkylsilyl group having 3 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms or a heteroaryl group having 3 to 20 carbon atoms. A second aspect of the present application provides an electronic component comprising an anode and a cathode disposed opposite to each other, and a functional layer disposed between the anode and the cathode, the functional layer comprising the above-described organic compound. A third aspect of the application provides an electronic device comprising an electronic component according to the second aspect of the application. The mother nucleus structure of the organic compound is a dibenzofive-membered ring structure containing hetero atoms (O, N, S), tetramethyl substituted cyclohexane is introduced to the dibenzofive-membered ring structure, lone pair electrons of the hetero atoms on the dibenzofive-membered ring structure can be conjugated with a plane, so that the conjugation degree of the structure is improved, the mobility is high, the reduction of the device voltage is facilitated, tetramethyl substituted cyclohexane is introduced to the dibenzofive-membered ring structure, the spatial configuration can be adjusted, the film forming property of the material is improved, the stability of the device is improved, the service life of the device is prolonged, the forbidden band width of the material is increased, the blocking capability of excitons is improved, the excito