High luminous efficiency blue organic light-emitting devices using high triplet excited energy materials

被引：117

作者：

Tanaka, Daisaku

Agata, Yuya

Takeda, Takashi

Watanabe, Soichi

Kido, Junji ^{[1
]}

机构：

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

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

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2007年 / 46卷 / 4-7期

关键词：

blue OLEDs; phosphorescent emitter; wide energy gap; high triplet energy level; triplet energy transfer;

D O I：

10.1143/JJAP.46.L117

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We succeeded to fabricate highly efficient blue organic light-emitting devices (OLEDs) by using a phosphorescent emitter, iridium(M) bis[(4,6-di-fluorophenyl)-pyridinate-N C-2']picolinate, and high triplet energy materials as the host and the carrier transport materials. A high power efficiency of 391m/W and external quantum efficiency of 21% were obtained at 100 cd/m(2).

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页码：L117 / L119

页数：3

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