Bottom-emission organic light-emitting diodes using semitransparent anode electrode by O2 plasma

被引：10

作者：

Hyung, Gun Woo ^{[2
]}

Lee, Dong Hyung ^{[2
]}

Lee, Ho Won ^{[2
]}

Kim, You Hyun ^{[1
]}

Lee, Seok Jae ^{[2
]}

Koo, Ja Ryong ^{[2
]}

Kim, Woo Young ^{[1
,3
]}

Kim, Young Kwan ^{[2
]}

机构：

[1] Hoseo Univ, Dept Green Energy & Semicond Engn, Asan 336795, South Korea

[2] Hongik Univ, Dept Informat Display, Seoul 121791, South Korea

[3] McMaster Univ, Dept Engn Phys, Hamilton, ON, Canada

来源：

ORGANIC ELECTRONICS | 2012年 / 13卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

Bottom-emission organic light-emitting diodes (BEOLEDs); Oxygen plasma; Optical properties; Multi-metal thin-films; Nickel oxide; Hole injection; NICKEL-OXIDE; ELECTROLUMINESCENT DEVICES; FILM; LAYER;

D O I：

10.1016/j.orgel.2012.07.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To improve the performance of bottom-emission organic light-emitting diodes (BEOLEDs), the effect of oxygen plasma treatment duration on the electrical properties of multi-metal Ni/Ag/Ni thin film anode was investigated. The results revealed that a Ni/Ag/Ni thin-film layer formed upon oxygen plasma treatment for 60 s. Our indium-free bottom-emission OLEDs effectively increased the electrical and optical properties by improving their electron-hole recombination and doing a strong micro-cavity effect with the semitransparent multi-metal anode. The green bottom-emission OLEDs show a luminance of 14,280 cd/m(2), a luminous efficiency of 8.5 cd/A, external quantum efficiency 2.6% EQE, a Commission Internationale de L'Eclairage coordinates of (0.32, 0.58) on flexible substrate. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：2594 / 2599

页数：6

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