Incorporation of fused tetrathiafulvalene units in a DPP-terthiophene copolymer for air stable solution processable organic field effect transistors

被引：43

作者：

Cortizo-Lacalle, Diego ^{[1
]}

Arumugam, Sasikumar ^{[1
]}

Elmasly, Saadeldin E. T. ^{[1
]}

Kanibolotsky, Alexander L. ^{[1
]}

Findlay, Neil J. ^{[1
]}

Inigo, Anto Regis ^{[1
]}

Skabara, Peter J. ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Pure & Appl Chem, WestCHEM, Glasgow G1 1XL, Lanark, Scotland

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 22期

基金：

英国工程与自然科学研究理事会;

关键词：

REDOX PROPERTIES; MOBILITY; POLYTHIOPHENE; POLYMER; 1,3-DITHIOLE-2-THIONE-4,5-DITHIOLATE; ELECTROSYNTHESIS; DERIVATIVES; DESIGN;

D O I：

10.1039/c2jm31502e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new terthiophene-diketopyrrolopyrrole (DPP) copolymer has been synthesised in which the central thiophene ring within the terthiophene repeat unit is attached to a fused tetrathiafulvalene (TTF). The electrochemical and absorption data of the polymer, p(DPP-TTF), are presented, and the multi-redox states are investigated by UV-vis spectroelectrochemistry. Bottom gate/bottom contact field effect transistors were fabricated from films of p(DPP-TTF) annealed at 200 degrees C. The material, which under these conditions forms a fibrous structure, exhibited hole mobilities of 4 +/- 2 x 10(-2) cm(2) V-1 s(-1) with an on/off ratio of 1 x 10(4). The transistors showed little sign of degradation over 15 days of exposure under ambient conditions, demonstrating excellent air-stability. This characteristic is attributed to the incorporation of the TTF unit into the polymer.

引用

页码：11310 / 11315

页数：6

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