A comparative study of bithiophene and thienothiophene based polymers for organic field-effect transistor applications

被引：2
|
作者：
Deng, Ping [1 ]
Ren, Shendong [2 ]
Cao, Kangli [1 ]
Li, Hongxiang [2 ]
Zhang, Qing [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Dept Polymer Sci & Engn, Shanghai Key Lab Elect Insulat & Thermal Aging, Shanghai 200240, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 09期
基金：
国家教育部博士点专项基金资助; 中国国家自然科学基金;
关键词：
HIGH-MOBILITY; SEMICONDUCTING POLYMERS; CONJUGATED POLYMERS;
D O I：
10.1007/s10854-016-4950-2
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
2,2'-Bithiophene and thieno[3,2-b]thiophene were polymerized separately with bis(2,3-dialkylthienyl)benzo[1,2-b:4,5-b']dithiophene by Stille coupling reactions to afford new conjugated polymer PBDTT-2T and PBDTT-TT. The polymers showed band gaps about 1.90 eV and the highest occupied molecular orbital (HOMO) energy levels below -5.20 eV. The PBDTT-2T and PBDTT-TT achieved hole mobilities of 0.035 and 0.008 cm(2) V-1 s(-1) in top-contact/bottom-gate organic field-effect transistor devices. The investigation of thin-film microstructures and morphologies showed that PBDTT-2T thin films had more uniform surface and better crystalline quality than PBDTT-TT did.
引用
收藏
页码：9143 / 9151
页数：9
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