標題: | Efficient multilayer red fluorescent polymer light-emitting diodes by host and guest blend system |
作者: | Syu, Wun-Shing Lin, Sheng-Chia Tseng, Shin-Rong Chen, Chun-Yu Liu, Chang-Yao Chao, Yu-Chiang Meng, Hsin-Fei Horng, Sheng-Fu 物理研究所 Institute of Physics |
關鍵字: | Polymer light-emitting diodes;Red light;Host and guest;Blend;Multilayer;Blade coating |
公開日期: | 1-五月-2010 |
摘要: | Efficient red light polymer light-emitting diodes are obtained by energy transfer from host and guest blend system. Two kinds of blend systems, SPB02:(10-(2-benzothiazolyl)-1,1,7,7-tetramethyl-2,3,6,7-tetrahydro-1H,5H,11H-[1] benzopyrano [6,7,8-ij]quinolizin-11-one)(C545T):4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) and SuperYellow (SY):poly(3,3'''-didodecylquaterthiophene) (PQT-12), are used as the active layers. C545T is a green emitter, acting as an assistant dopant to improve the energy transfer from blue SPB02 host to red DCJTB. The efficiency can achieve to 3.3 cd/A for DCJTB and 3.5 cd/A for PQT-12 system by multilayer device structure with 2,2,2 ''-(1,3,5-phenylene)-tris(1-phenyl-1H-benzimidazole) (TPBi) as electron transport layer. The SuperYellow:PQT-12 device shows great luminance of 16,930 cd/m(2). (C) 2010 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.synthmet.2010.01.037 http://hdl.handle.net/11536/5474 |
ISSN: | 0379-6779 |
DOI: | 10.1016/j.synthmet.2010.01.037 |
期刊: | SYNTHETIC METALS |
Volume: | 160 |
Issue: | 9-10 |
起始頁: | 871 |
結束頁: | 875 |
顯示於類別: | 期刊論文 |