| abstract |
The invention discloses a compound and an organic electroluminescence device, the structural formula of which is shown in the following formula 1: Z1-Z3 is the same or different, each independently is CH or N, Z1-Z3 is not CH at the same time; Ar1 is phenyl or deuterated phenyl; Y is O, Ar2 is C1-C4 straight or branched chain alkyl , C1-C4 deuterated straight-chain or branched alkyl, C3-C10 cycloalkyl, C3-C10 deuterated cycloalkyl, C3-C6 cycloalkenyl, C3-C6 deuterated cycloalkenyl , phenyl, naphthyl, anthracenyl, phenanthryl, deuterated phenyl, deuterated naphthyl, deuterated anthracenyl, deuterated phenanthrenyl, the compound of the present invention is used as the host material of the light-emitting layer, and is applied to organic electricity Among the electroluminescent devices, the service life of the prepared organic electroluminescent device is greatly improved, so it has a very broad application prospect. |