Fluorene derivatives for highly efficient non-doped single-layer blue organic light-emitting diodes

被引：26

作者：

Feng, Xin Jiang ^{[1
,2
,3
]}

Chen, Shao Fu ^{[1
]}

Ni, Yong ^{[1
]}

Wong, Man Shing ^{[2
,3
]}

Lam, Maggie M. K. ^{[3
,4
]}

Cheah, Kok Wai ^{[3
,4
]}

Lai, Guo Qiao ^{[1
]}

机构：

[1] Hangzhou Normal Univ, Minist Educ, Key Lab Organosilicon Chem & Mat Technol, Hangzhou 310012, Zhejiang, Peoples R China

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

[3] Hong Kong Baptist Univ, Inst Adv Mat, Kowloon Tong, Hong Kong, Peoples R China

[4] Hong Kong Baptist Univ, Dept Phys, Kowloon Tong, Hong Kong, Peoples R China

来源：

ORGANIC ELECTRONICS | 2014年 / 15卷 / 01期

关键词：

Fluorene derivatives; Nondoped; Single-layer; Blue; Organic light-emitting diodes; AMORPHOUS MOLECULAR MATERIALS; BIPOLAR HOST; ELECTROLUMINESCENT DEVICES; TRIPLET-STATE; THIENYL RINGS; TRANSPORT; RED; PHOTOLUMINESCENCE; CARBAZOLE; GREEN;

D O I：

10.1016/j.orgel.2013.10.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Diphenylamino- and triazole-endcapped fluorene derivatives which show a wide energy band gap, a high fluorescence quantum yield and high stability have been synthesized and characterized. Single-layer electroluminescent devices of these fluorene derivatives exhibited efficient deep blue to greenish blue emission at low driving voltage. The single-layer OLED of PhN-OF(1)-TAZ shows a maximum current efficiency of 1.54 cd/A at 20 mA cm(2) with external quantum efficiency (EQE) of 2.0% and CIE coordinates of (0.153, 0.088) in deep blue region, while the single-layer device of oligothienylfluorene PhN-OFOT-TAZ shows a maximum brightness of 7524 cd/m(2) and a maximum current efficiency of 2.9 cd/A with CIE coordinates of (0.20, 0.40) in greenish blue. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：57 / 64

页数：8

共 47 条

[1] Poly(2,7-dibenzosilole): A blue light emitting polymer [J].