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

页码：1415 / 1418

页数：4

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