Enhanced luminance of white organic light-emitting diode with yellow nanophosphors-embedded blue polymer emitting layer

被引：5
|
作者：
Park, J. H. [1 ]
Jeong, Y. S. [1 ]
Jang, N. W. [2 ]
Kim, J. S. [1 ]
机构：
[1] Pukyong Natl Univ, Dept Image Syst Sci & Engn, Pusan 608739, South Korea
[2] Korea Maritime Univ, Div Elect & Elect Engn, Pusan 606791, South Korea
来源：
JOURNAL OF LUMINESCENCE | 2010年 / 130卷 / 08期
关键词：
White organic light-emitting device; Phosphors; Polyfluorene; Luminescence;
D O I：
10.1016/j.jlumin.2010.03.003
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
White organic light-emitting device was achieved through an incorporation of yellow YAG nanophosphors into blue polyfluorene emitting layer: electrode/YAG@polyfluorene/hole-transport/injection layers/ITO glass. The brightness of the proposed device (230 cd/m(2) at 30 V) was enhanced by a factor of about two in comparison with that of phosphor-free reference device. It is attributed to the increased local electric field caused by bumps of nanophophors on the emitting layer. With increase of voltage, the blue-green emission decreased whereas the yellow emission increased. It is due to the effective energy transfer from the blue-green to the yellow bands. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1415 / 1418
页数：4
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