| 초록 |
Threeblue fluorescent materials were newly synthesized by attaching triphenylamineside groups at their ortho, meta, and para positions to a dual core moiety ofanthracene and pyrene, two chromophores with good luminous efficiency; thesethree materials were 2-(6-(10-(2-(diphenylamino)phenyl)anthracen-9-yl)-pyren-1-yl)-N,N-diphenylaniline (o-TPA-AP-TPA),3-(6-(10-(3-(diphenylamino)phenyl)anthracen-9-yl)pyren-1- yl)-N,N-diphenylaniline(m-TPA-AP-TPA), and 4-(6-(10-(4-(diphenylamino)phenyl)anthracen-9-yl)pyren-1-yl)-N,N-diphenylaniline (p-TPA-AP-TPA), respectively. The optical, thermal, andelectroluminescence (EL) properties of the synthesized materials were measured.All three materials were found to be real blue emitters in the solution stateand display high PLQY values. A device doped with p-TPA-AP-TPA displayed a veryhigh efficiency of 9.14 cd A-1 and an EQE of 8.38% at a high luminance of5000 cd m-2 |
