Smart Design on the Cyclometalated Ligands of Iridium(III) Complexes for Facile Tuning of Phosphorescence Color Spanning from Deep-Blue to Near-Infrared

被引：38

作者：

Chen, Zhao ^{[1
,2
]}

Wang, Liqi ^{[1
,2
]}

Ho, Cheuk-Lam ^{[3
]}

Chen, Shuming ^{[4
]}

Suramitr, Songwut ^{[5
,6
]}

Plucksacholatarn, Aunyamanee ^{[5
,6
]}

Zhu, Nianyong ^{[1
,2
]}

Hannongbua, Supa ^{[5
,6
]}

Wong, Wai-Yeung ^{[1
,2
,3
]}

机构：

[1] Hong Kong Baptist Univ, Inst Mol Funct Mat, Kowloon Tong, Waterloo Rd, Hong Kong, Peoples R China

[2] Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Waterloo Rd, Hong Kong, Peoples R China

[3] Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Hom, Hong Kong, Peoples R China

[4] Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

[5] Kasetsart Univ, Dept Chem, Fac Sci, Bangkok 10900, Thailand

[6] Kasetsart Univ, KU Inst Adv Studies, Ctr Adv Studies Nanotechnol Chem Food & Agr Ind, Bangkok 10900, Thailand

来源：

ADVANCED OPTICAL MATERIALS | 2018年 / 6卷 / 23期

基金：

中国国家自然科学基金;

关键词：

full-color emission; iridium complexes; near-infrared; organic light-emitting diodes; trifluoromethyl substituent; LIGHT-EMITTING-DIODES; EXTERNAL QUANTUM EFFICIENCY; RED PHOSPHORESCENCE; RATIONAL DESIGN; PHOTOLUMINESCENCE; EMITTERS; SERIES;

D O I：

10.1002/adom.201800824

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It has long been a challenge to achieve iridium(III) complexes with emission colors covering the whole visible and near-infrared wavelengths, by using similar cyclometalating ligands. Herein, a series of iridium(III) complexes that accomplish broadly tunable phosphorescence from 420 to 729 nm through the use of trifluoromethyl substituents and other conjugated units such as [1,2,5] thiadiazolo[3,4-c] pyridine in the cyclometalating ligands are reported. The peak external quantum efficiencies of 7.1%, 20.0%, 14.0%, 4.0%, and 16.0% are achieved for deep-blue, green, red, near-infrared, and white phosphorescent organic light-emitting diodes, respectively, by using these iridium(III) complexes.

引用

页数：10

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