Enhanced electrical properties of PEDOT:PSS films using solvent treatment and its application to ITO-free organic light-emitting diodes

被引：21
|
作者：
Seo, Yoon Kyung [1 ]
Joo, Chul Woong [2 ]
Lee, Jonghee [2 ]
Han, Joo Won [1 ]
Lee, Dong Jin [1 ]
Entifar, Siti Aisyah Nurmaulia [1 ]
Kim, Soukyoon [1 ]
Cho, Nam Sung [2 ]
Kim, Yong Hyun [1 ]
机构：
[1] Pukyong Natl Univ, Dept Display Engn, Busan 48513, South Korea
[2] ETRI, Flexible Informat Device Res Ctr, Daejeon 34129, South Korea
来源：
JOURNAL OF LUMINESCENCE | 2017年 / 187卷
关键词：
Organic light-emittingdiodes; PEDOT:PSS; Conductivepolymers; Transparentelectrodes; 2-ethoxyethanol; TRANSPARENT ELECTRODES; PEDOT/PSS FILMS; HIGH-EFFICIENCY; PSS FILMS; CONDUCTIVITY;
D O I：
10.1016/j.jlumin.2017.03.002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films are prepared by introducing a new solvent 2-ethoxyethanol and are optimized by acid-free solvent post treatment. The behavior of samples are investigated with various coating conditions. The change of electrical performance for 2-ethoxyethanol added PEDOT:PSS films with various post treatment methods is studied. Upon post treatment, the sheet resistance greatly decreases attributed to a structural change with removal of insulating PSS in the film. Based on these conductive films, we demonstrate efficient ITO-free green phosphorescent organic light-emitting diodes (OLEDs). The efficiency of OLEDs with post treated PEDOT:PSS electrodes is greater than that of OLEDs with untreated PEDOT:PSS electrodes. The results illustrate a promising future for flexible, low-cost, ITO-free OLEDs employing PEDOT:PSS electrodes optimized by 2-ethoxyethaol with acid-free solvent post treatment. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：221 / 226
页数：6
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