A Novel Alkylated Indacenodithieno[3,2‐b]thiophene‐Based Polymer for High‐Performance Field‐Effect Transistors

作者：Weimin Zhang, Yang Han, Xiuxiu Zhu, Zhuping Fei, Yu Feng, Neil D. Treat, Hendrik Faber, Natalie Stingelin, Iain McCulloch, Thomas D. Anthopoulos, Martin Heeney · 发表于：Advanced Materials · 年份：2015 · DOI：10.1002/adma.201504092 · 被引用次数：136 · 研究领域：Organic Electronics and Photovoltaics、Conducting polymers and applications、Semiconductor materials and devices

A novel rigid donor monomer, indacenodithieno[3,2-b]thiophene (IDTT), containing linear alkyl chains, is reported. Its copolymer with benzothiadiazole is an excellent p-type semiconductor, affording a mobility of 6.6 cm(2) V(-1) s(-1) in top-gated field-effect transistors with pentafluorobenzenethiol-modified Au electrodes. Electrode treatment with solution-deposited copper(I) thiocyanate (CuSCN) has a beneficial hole-injection/electron-blocking effect, further enhancing the mobility to 8.7 cm(2) V(-1) s(-1) .