Highly efficient greenish-blue platinum-based phosphorescent organic light-emitting diodes on a high triplet energy platform

被引：11

作者：

Chang, Y. L. ^{[1
]}

Gong, S. ^{[1
]}

Wang, X. ^{[2
]}

White, R. ^{[1
]}

Yang, C. ^{[3
]}

Wang, S. ^{[2
]}

Lu, Z. H. ^{[1
]}

机构：

[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada

[2] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

[3] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 17期

基金：

加拿大自然科学与工程研究理事会;

关键词：

EXTERNAL QUANTUM EFFICIENCY; COMPLEXES; DEVICES; OLEDS; HOST;

D O I：

10.1063/1.4875240

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have demonstrated high-efficiency greenish-blue phosphorescent organic light-emitting diodes (PHOLEDs) based on a dimesitylboryl-functionalized C boolean AND N chelate Pt(II) phosphor, Pt(m-Bptrz) (t-Bu-pytrz-Me). Using a high triplet energy platform and optimized double emissive zone device architecture results in greenish-blue PHOLEDs that exhibit an external quantum efficiency of 24.0% and a power efficiency of 55.8 lm/W. This record high performance is comparable with that of the state-of-the-art Ir-based sky-blue organic light-emitting diodes. (C) 2014 AIP Publishing LLC.

引用

页数：4

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