Photoluminescence and electroluminescence properties of coumarin-urea/poly(N-vinylcarbazole) blends

被引：17

作者：

Zheng, HP ^{[1
]}

Zhang, RF ^{[1
]}

Wu, F ^{[1
]}

Tian, WJ ^{[1
]}

Shen, JC ^{[1
]}

机构：

[1] Jilin Univ, Dept Chem, Key Lab Supramol Struct & Spect, Changchun 130023, Peoples R China

来源：

SYNTHETIC METALS | 1999年 / 100卷 / 03期

基金：

中国国家自然科学基金;

关键词：

photoluminescence; electroluminescence; coumarin-urea;

D O I：

10.1016/S0379-6779(99)00012-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The photoluminescence (PL) properties of a novel coumarin derivative (DCDU) in solution state and in poly(N-vinylcarbazole) (PVK) matrix were investigated. The single-layer electroluminescence (EL) devices fabricated from the DCDU/PVK blends showed the emission peak varying from 445 nm to 472 nm with the different dye doping ratio. When 2,5-bis(5'-tert-butyl-2-benzoxazoly)thiophene(BBOT) was used as an electron transport layer, the ITO/(2 wt.% DCDU+ PVK)/BBOT/Al device displayed the improved characteristics with the low turn-on voltage at 6.3 V, a maximum luminance of 730 cd/m(2) and an external quantum efficiency of 0.8%. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：291 / 295

页数：5

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