| abstract |
The invention discloses a compound whose structural formula is shown in the following formula 1: Wherein, Ar1 is phenyl or naphthyl; Ar2 is substituted or unsubstituted adamantyl, substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted anthracenyl, substituted or unsubstituted phenanthryl, substituted or unsubstituted indole(3,2,1-JK)carbazolyl, substituted or unsubstituted dibenzofuranyl, substituted or unsubstituted dibenzothienyl; X1, X2, X3 Each independently is N or CH, X1, X2, X3 are not CH at the same time; Y is O or S, the compound of the present invention is used as the host material of the light-emitting layer, and is used in organic electroluminescent devices. The prepared The service life and luminous efficiency of electroluminescent devices have been greatly improved. |