Blue light-emitting material containing pyrenyl and triazinyl, preparation method and organic electroluminescent device

By introducing 4,4,5,5-tetramethyl-4,5-dihydroprene groups and triazine groups into blue light materials, combining bridge groups and substituents, the thermal stability and electron mobility of organic electroluminescent devices are improved, and the problem of insufficient efficiency and lifetime of blue light devices is solved, and low driving voltage and excellent luminescence performance are achieved.

CN119751368APending Publication Date: 2025-04-04JILIN OPTICAL & ELECTRONICS MATERIALS CO LTD
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Patent Information

Application Number
CN202411891148.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

In the field of organic electroluminescence, the working life and efficiency of blue light devices are still an open issue, affecting its industrialization process in practical applications.

Method used

A blue light material containing pyrene and triazine group was designed. By introducing 4,4,5,5-tetramethyl-4,5-dihydroprene and triazine groups as parent core structures, combining bridge groups and substituents, the thermal stability and electron mobility of the material are improved.

Benefits of technology

The organic electroluminescent device with low driving voltage, excellent luminescence efficiency and service life is achieved, solving the problem of insufficient efficiency and service life of blue light devices in practical applications.

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Abstract

The invention belongs to the field of organic electroluminescent materials, and discloses a blue light material containing pyrenyl and triazinyl, a preparation method and an organic electroluminescent device. The structure of the blue light material containing pyrenyl and triazinyl is as shown in a chemical formula I: # imgabs0. After the blue light material containing pyrenyl and triazinyl provided by the invention is applied to an organic electroluminescent device, the driving voltage of the photoelectric device can be reduced, the luminous efficiency of the photoelectric device can be improved, and the service life of the photoelectric device can be prolonged.
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