Thermal active delay fluorescent material, method for manufacturing same, and organic light-emitting diode device
A thermal active delay fluorescent material includes a structural formula in formula 1:     The application adopts a strong electron-withdrawing group of a large conjugate plane as an electron acceptor, and combines an electron acceptor with a strong electron donor to achieve a deep red light thermal active delay fluorescent material with a typical TADF characteristics and a low energy level. The thermal active delay fluorescent material of the application is a deep red light TADF material having a lower single triplet energy level difference, an ultrafast reverse intersystem crossing speed and a high luminous efficiency, and when it is used as a luminescent material for an organic light-emitting diode device, it can promote a luminous efficiency of the organic light-emitting diode device.
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
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Xianjie Xu Jinchang Jiajia Yu
Li Wang Huang Luo Gu