abstract |
The present invention provides a TADF compound, its use and an electronic device containing the same, which has a polyconjugated ring structure containing carbonyl, sulfone or phosphinoyl groups, and the TADF compound obtained by the present invention is suitable for use as a light-emitting host in an OLED device Materials, compared with the compounds disclosed in the prior art, the OLED device prepared by using the TADF compound of the present invention as the light-emitting host material has a current efficiency as high as 124Cd/A, a service life of more than 354h and a lower working In addition, the preparation method of the TADF compound of the present invention is relatively simple, with fewer synthesis steps, and the OLED device prepared by using the TADF compound of the present invention has a lower cost and is suitable for large-scale promotion. |