Novel four-pyridylbenzene-armed biphenyls as electron-transport materials for phosphorescent OLEDs

被引：125

作者：

Su, Shi-Jian ^{[1
,2
]}

Tanaka, Daisaku ^{[1
]}

Li, Yan-Jun ^{[1
]}

Sasabe, Hisahiro ^{[1
]}

Takeda, Takashi ^{[1
]}

Kido, Junji ^{[1
,2
]}

机构：

[1] Optoelect Ind & Technol Dev Assoc, Bunkyo Ku, Tokyo 1120014, Japan

[2] Yamagata Univ, Fac Engn, Dept Polymer Sci & Engn, Yamagata 9928510, Japan

来源：

ORGANIC LETTERS | 2008年 / 10卷 / 05期

关键词：

D O I：

10.1021/ol7030872

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A series of four-pyridylbenzene-armed biphenyl derivatives were designed and synthesized as an electron-transport and exciton- and hole-block layer for the fac-tris(2-phenylpyridine)iridium (Ir(PPy)(3))-based green phosphorescent organic light-emitting devices (OLEDs), giving improved efficiency in comparison to that with both the electron-transport layer of tris(8-hydroxyquinoline)aluminum (Alq3) and the exciton- and hole-block layer of 2,9-dimethyl-4,7-diphenylphenathroline (BCP).

引用

页码：941 / 944

页数：4

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