| abstract |
The invention discloses a compound whose structural formula is shown in the following formula 1: Wherein, m, n are the same or different, each independently is 0 or 1, P is 1, m+n+p=2; R1 is selected from phenyl, biphenyl, and said phenyl and biphenyl are unsubstituted or a group obtained by replacing at least one hydrogen with deuterium; R2, R3 are the same or different, and each independently is a group shown in formula 2: Among them, Ar1 and Ar2 are the same or different, and each is independently an aryl group or a heteroaryl group; when the compound of the present invention is applied to an organic electroluminescence device, under the same current density, the luminous efficiency is greatly improved, and the device has a high luminous efficiency. The start-up voltage is reduced, the power consumption of the device is relatively reduced, and the life of the device is correspondingly increased. |