CN-117658965-B - Organic compound, electronic component, and electronic device

CN117658965BCN 117658965 BCN117658965 BCN 117658965BCN-117658965-B

Abstract

The present application relates to an organic compound, an electronic component, and an electronic device. The organic compound provided by the application has a structure shown in the formula I, and can be applied to electronic elements to remarkably improve the performance of devices.

Inventors

Wang yalong
JIA ZHIYAN
WEI CHENG
LI YINGWEN
JIN RONGGUO

Assignees

陕西莱特光电材料股份有限公司

Dates

Publication Date: 20260508
Application Date: 20231115

Claims (7)

1. An organic compound, characterized in that the organic compound has a structure represented by formula I: wherein X is selected from O or S; R 1 and R 2 are the same or different and are each independently selected from methyl or tridentate methyl; L 1 and L 2 are the same or different and are each independently selected from a single bond, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted fluorenylene group, a substituted or unsubstituted dibenzothienyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted carbazolylene group; The substituents in L 1 and L 2 are the same or different and are each independently selected from deuterium, fluoro, cyano, trifluoromethyl, tridentate methyl, trimethylsilyl, methyl, ethyl, isopropyl, tert-butyl or phenyl; Ar 1 and Ar 2 are the same or different and are each independently selected from the group consisting of substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted biphenyl, substituted or unsubstituted terphenyl, substituted or unsubstituted phenanthryl, substituted or unsubstituted anthracenyl, substituted or unsubstituted triphenylene, substituted or unsubstituted fluorenyl, substituted or unsubstituted spirobifluorenyl, substituted or unsubstituted dibenzofuranyl, substituted or unsubstituted dibenzothiophenyl, and 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, trifluoromethyl, trimethylsilyl, methyl, ethyl, isopropyl, t-butyl, tridentate methyl, phenyl or naphthyl.
2. The organic compound according to claim 1, wherein L 1 and L 2 are the same or different and are each independently selected from the group consisting of a single bond or:
3. 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 following groups:
4. The organic compound according to claim 1, wherein the organic compound is selected from the group consisting of:
5. An electronic component comprising an anode and a cathode which are disposed opposite to each other, and a functional layer provided between the anode and the cathode, wherein the functional layer comprises the organic compound according to any one of claims 1 to 4.
6. The electronic component of claim 5, wherein the functional layer comprises a light emission adjustment layer; the electronic component is an organic electroluminescent device or a photoelectric conversion device.
7. An electronic device comprising the electronic component of claim 5 or 6.

Description

Organic compound, electronic component, and electronic device Technical Field The present application relates to the field of organic electroluminescence, and in particular to an organic compound, an electronic element, and an electronic device. Background Organic electroluminescent devices (OLEDs) are considered as next generation display and lighting technologies because of their advantages of active light emission, high luminous efficiency, low power consumption, light weight, thin profile, fast response speed, large viewing angle, and the like. The organic electroluminescent device is composed of an anode, a hole injection layer, a hole transport layer, an organic luminescent layer, an electron transport layer, an electron injection layer and a cathode. Electrons and holes are injected from the cathode and the anode, respectively, and then are recombined in the organic light emitting layer through the electron transport layer and the hole transport layer to form excitons, and the excitons return to a ground state to emit light. Among them, the materials used for the hole transport layer generally have a low Highest Occupied Molecular Orbital (HOMO) value, and thus mostly have a low T1 value, and excitons generated in the organic light emitting layer during device operation are transferred to the hole transport layer, so that charges in the organic light emitting layer are not uniform, light is emitted in the hole transport layer or at the interface of the hole transport layer, and finally, color purity is reduced, efficiency and lifetime are reduced. At present, in order to improve the efficiency and service life of a device, a material for a light-emitting adjustment layer with a high T1 value and a wide band gap is urgently needed, but the currently reported material for the light-emitting adjustment layer has low glass transition temperature due to generally small molecular weight, and is easy to crystallize in the repeated charge and discharge process during use, so that the uniformity of a film is damaged, and the service life of the material is affected. Therefore, the development of stable and efficient materials for the light-emitting adjustment layer is used for improving the charge mobility, reducing the driving voltage, improving the light-emitting efficiency of the device, prolonging the service life of the device and has important practical application value. Disclosure of Invention The object of the present application is to provide an organic compound, an electronic component and an electronic device, which can improve the performance of the device by using the organic compound for an organic electroluminescent device. A first aspect of the present application provides an organic compound having a structure represented by formula I: wherein X is selected from O or S; R 1 and R 2 are the same or different and are each independently selected from methyl or tridentate methyl; 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, or a substituted or unsubstituted heteroarylene group having 3to 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 20 carbon atoms; The substituents in L 1、L2、Ar1 and Ar 2 are the same or different and are each independently selected from deuterium, halogen group, cyano group, alkyl group having 1 to 10 carbon atoms, haloalkyl group having 1 to 10 carbon atoms, deuteroalkyl group having 1 to 10 carbon atoms, trialkylsilyl group having 3 to 12 carbon atoms, aryl group having 6 to 20 carbon atoms or 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 the electronic component of the second aspect. The organic compound takes dibenzofuran or dibenzothiophene as a mother nucleus, one side of the organic compound has two substituent groups in a benzene ring, the two substituent groups are respectively selected from unsubstituted or deuterium-substituted methyl groups, and the other side of the organic compound is directly connected with an arylamine group. Wherein, the unsubstituted or deuterium substituted methyl and the connected benzene ring form a super conjugated effect, which can improve the electron cloud density of the benzene ring. In addition, because the volume of methyl or tridentate methyl is smaller, the introduction of two groups into the same benzene ring of the aromatic amine in the compound not only can finely adjust the sp