A hole transport material and its application

Abstract

This invention discloses a general formula compound with the following formula: In the general formula, Ar 1 Ar 2 Each C6-C is independently selected from substituted or unsubstituted C6-C. 30 aryl, substituted or unsubstituted C3-C 30 Heterocyclic aryl; R 1 Selected from substituted or unsubstituted C1-C 30 Alkyl, substituted or unsubstituted C6-C 30 aryl groups, where n is an integer from 1 to 5; R 2 R 3 Each C1-C is independently selected from H, substituted or unsubstituted C1-C 12 Alkyl groups, substituted or unsubstituted C1-C8 alkoxy groups, substituted or unsubstituted C6-C 30 aryl, substituted or unsubstituted C3-C 30 The heterocyclic aryl group has m and p as independent integers from 1 to 4. When the compound of the present invention is used as a hole transport material in the OLED light-emitting layer, it can effectively improve the hole mobility in the hole transport layer of the organic electroluminescent device, thereby improving the luminous efficiency and stability of the device. The present invention also protects organic electroluminescent devices using the above-described general formula compound.

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