Synthesis and optimization solid-state order using side-chain position of thieno-isoindigo derivative-based D-A polymers for high-performance ambipolar organic thin films transistors

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• 作者：Guobing Zhang^a ; ^b ; ^{gbzhang@hfut.edu.cn} ; Junhui Chen^a ; Yanrong Dai^a ; Sungwon Song^c ; Zhiwei Ye^a ; Hongbo Lu^a ; ^b ; Longzhen Qiu^a ; ^b ; ^{lzqiu@ustc.edu} ; Kilwon Cho^c
• 关键词：Thieno-isoindigo derivative ; D&ndash ; A polymers ; Organic thin films transistors ; Ambipolar transport
• 刊名：Dyes and Pigments
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：137
• 期：Complete
• 页码：221-228
• 全文大小：3155 K
• 卷排序：137

文摘

Two new polymers based on BTPBF unit were synthesized and characterized. Two polymers showed ultra broad absorption spectra (covering 400–1600 nm) and remarkably low bandgaps (ca. 0.8 eV). The planar structure and π-stacking orientation can be optimized by the positions of side-chains. Polymer exhibited excellent ambipolar mobilities of as high as over 0.8/0.19 cm2 V−1s−1.