Effects of Side-Chain Interdigitation on Stability: An Environmentally, Electrically, and Thermally Stable Semiconducting Polymer

被引：13

作者：

Choi, Danbi ^{[4
]}

Jeong, Ban-Seok ^{[5
]}

Ahn, Byungcheol ^{[1
,2
,3
]}

Chung, Dae Sung ^{[4
]}

Lim, Kimin ^{[5
]}

Kim, Se Hyun ^{[4
]}

Park, Seon Uk ^{[4
]}

Ree, Moonhor ^{[1
,2
,3
]}

Ko, Jaejung ^{[5
]}

Park, Chan Eon ^{[4
]}

机构：

[1] Polymer Res Inst, Div Adv Mat Sci, Ctr Electrophoto Behav Adv Mol Syst, Pohang Accelerator Lab,Dept Chem, Pohang 790794, South Korea

[2] BK Sch Mol Sci, Pohang 790794, South Korea

[3] Pohang Univ Sci & Technol, Pohang 790794, South Korea

[4] Pohang Univ Sci & Technol, Polymer Res Inst, Dept Chem Engn, POSTECH Organ Elect Lab, Pohang 790784, South Korea

[5] Korea Univ Jochiwon, Dept New Mat Chem, Chungnam 339700, South Korea

来源：

ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 02期

关键词：

poly(3,6-dihexyl-[2,2 ']bi[thieno[3,2-b]thiophene]) (PDHTT); air stability; electrical stability; thermal stability; PERFORMANCE; POLYTHIOPHENES; TRANSISTORS; MORPHOLOGY;

D O I：

10.1021/am201301u

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A polymeric semiconductor, poly(3,6-dihexyl-[2,2']bi[thieno[3,2-b]thiophene]) (PDHTT), was synthesized and tested as an active layer in organic thin film transistors (OTFTs). This semiconductor showed considerable potential for use in commercial electronic devices because of its superior characteristics, particularly its good stability. PDHTT-based OTFTs exhibited high stability in air, retaining their initial performance after exposure to 70% relative, humidity for 50 days; they were also stable under repeated electrical stress and even after exposure to temperatures as high as 250 degrees C. We attribute the remarkable Stability of PDHTT OTFTs to the relatively low highest occupied molecular orbital (5.1 eV) level of the polymer and its highly interdigitated structure in the thin film state.

引用

页码：702 / 706

页数：5

共 24 条

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