Effect of doped emitting layer on electrical and optical properties in blue organic light-emitting devices

被引:9
作者
Bang, H. S. [1 ]
Seo, S. Y. [2 ]
Choo, D. C. [3 ]
Kim, T. W. [3 ]
Lee, S. J. [4 ,5 ]
Seo, J. H. [4 ,5 ]
Kim, Y. K. [4 ,5 ]
Chu, C. [6 ]
Ha, J. [6 ]
机构
[1] Hanyang Univ, Res Inst Informat Display, Div Elect & Comp Engn, Seoul 133791, South Korea
[2] Hanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
[3] Hanyang Univ, Res Inst Informat Display, Div Elect & Comp Engn, Seoul 133791, South Korea
[4] Hongik Univ, Dept Informat Display Engn, Seoul 121791, South Korea
[5] Hongik Univ, COMID, Seoul 121791, South Korea
[6] Samsung Mobile Display Co Ltd, Ctr Technol, Yongin 449711, South Korea
关键词
Blue organic light-emitting diode; Doping layer; Electrical property; Optical property; COMBINATORIAL FABRICATION; ELECTROLUMINESCENT DEVICE; EMISSION; EFFICIENCY; DIODES; HOST;
D O I
10.1016/j.tsf.2009.03.104
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electrical and optical properties of blue organic light-emitting devices (OLEDs) with doped or undoped emitting layers (EMLs) consisting of a heterostructure layer or a single layer were investigated. The driving voltage of the OLEDs with an undoped heterostructure multiple EML was lower than those of both OLEDs with a single EML and a doped heterostructure multiple EML The electroluminescence spectra of the OLEDs with an undoped and a doped heterostructure EMLs showed dominant peaks related to two heterostructure layers. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:5314 / 5317
页数:4
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