Enhanced quantum efficiency in polymer light-emitting diode with polystryrene nanolayer

被引:0
作者
Park, JH
Park, OO
Yu, JW
Kim, JK
Kim, YC
机构
[1] Ctr Adv Funct Polymers, Taejon 305701, South Korea
[2] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Taejon 305701, South Korea
[3] Korea Inst Sci & Technol, Optoelect Mat Res Ctr, Seoul 130650, South Korea
[4] Kyung Hee Univ, Coll Environm & Appl Chem, Yongin 449701, Kyunggi Do, South Korea
关键词
electron injection; insulating layer; light-emitting diodes (LEDs);
D O I
10.1080/15421400490506072
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report the effect of polystyrene nanolayer on electron injection in the polymer light-emitting diodes (PLEDs) in which hole is major charge carrier. Especially, when a similar to10 nm-thick polystyrene layer was employed, the device gave two orders of magnitude higher external quantum efficiency than that of the one without an insulating nanolayer This enhancement may result from the dramatic lowering of the effective barrier height for electron injection to the emitting layer.
引用
收藏
页码:141 / 145
页数:5
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