Polymer blended small molecule organic field effect transistors with improved device-to-device uniformity and operational stability

被引：48
作者：
Kim, Yong-Hoon [2 ]
Anthony, John E. [3 ]
Park, Sung Kyu [1 ]
机构：
[1] Chung Ang Univ, Sch Elect & Elect Engn, Seoul 156756, South Korea
[2] Korea Elect Technol Inst, Flexible Display Res Ctr, Gyeonggi 463816, South Korea
[3] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA
来源：
ORGANIC ELECTRONICS | 2012年 / 13卷 / 07期
基金：
新加坡国家研究基金会;
关键词：
Organic field effect transistor; Polymer blending; Device-to-device uniformity; Operational stability; ROUTE;
D O I：
10.1016/j.orgel.2012.03.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report high performance organic thin-film transistors (OTFTs) with improved device-to-device uniformity and operational stability using polymer-blended small molecule organic semiconductor, 2,8-difluoro-5,11-bis(triethylsilylethynyl) anthradithiophene (diF-TESADT). The diF-TESADT blended with poly(alpha-methylstyrene) was spin-cast to form bottom-contact OTFTs, and an average carrier mobility of more than 0.16 cm(2)/V s with more uniform surface morphology and device-to-device uniformity compared to neat diF-TESADT devices were achieved. Additionally, the polymer-blended OTFTs have shown improved operational stability under gate bias-stress possibly due to blocking of ambient oxygen and moisture by vertically separated insulating matrix polymer. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码：1152 / 1157
页数：6
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