Surface Plasmon Polariton Enhancement in Blue Organic Light-Emitting Diode: Role of Metallic Cathode

被引：24

作者：

Shi, Xiao-Bo ^{[1
]}

Gao, Chun-Hong ^{[1
]}

Zhou, Dong-Ying ^{[1
]}

Qian, Min ^{[1
]}

Wang, Zhao-Kui ^{[1
]}

Liao, Liang-Sheng ^{[1
]}

机构：

[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2012年 / 5卷 / 10期

关键词：

MEDIATED EMISSION;

D O I：

10.1143/APEX.5.102102

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Surface plasmon polariton (SPP)-enhanced blue phosphorescent organic light-emitting diodes (OLEDs) are demonstrated by inserting a thin Ag sublayer into the electron-transporting layer. An 18% improvement in current efficiency is achieved when the Ag sublayer locates at a suitable position between the light-emitting layer and the metal cathode. The improved efficiency was attributed to the effective energy transfer between excitons and SPP in OLEDs. Both experimental facts and theoretical simulation indicate that the SPP effect is associated with not only the emissive material and the inserted Ag sublayer, but also the metallic cathode that was paid little attention before. (C) 2012 The Japan Society of Applied Physics

引用

页数：3

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