2,5-Bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4-(2H,5H)-dione-Based Donor-Acceptor Alternating Copolymer Bearing 5,5′-Di (thiophen-2-yl)-2,2′-biselenophene Exhibiting 1.5 cm2.V-1.s-1 Hole Mobility in Thin-Film Transistors

被引：336

作者：

Ha, Jae Seung ^{[1
]}

Kim, Kyung Hwan ^{[1
]}

Choi, Dong Hoon ^{[1
]}

机构：

[1] Korea Univ, Dept Chem, Res Inst Nat Sci, Seoul 136701, South Korea

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 27期

基金：

新加坡国家研究基金会;

关键词：

HIGH-PERFORMANCE; SEMICONDUCTING POLYMERS; DIKETOPYRROLOPYRROLE; FLUORENE;

D O I：

10.1021/ja203189h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel diketopyrrolopyrrole-based pi-conjugated copolymer P(DPP-alt-DTBSe), 5, and a known copolymer P(DPP-alt-QT), 4, have been synthesized in 80-90% yield using the Stille coupling reaction. The molecular weights of 4 and 5 are 58 781 and 19 271 g/mol, respectively, with polydispersity values of 3.25-3.35. A relatively small band gap of 1.32-1.39 eV and excellent solubility in organic solvents were achieved in the two polymers. Thin-film transistors made of 5 exhibit outstanding performance (e.g., mu > 1.0-1.5 cm(2).V(-1)s(-1), I-on/I-off > 10(5)-10(6)) with a conventional n-octyltrichlorosilane-SiO2 gate dielectric.

引用

页码：10364 / 10367

页数：4

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