Importance of solubilizing group and backbone planarity in low band gap polymers for high performance ambipolar field-effect transistors

JS Lee, SK Son, S Song, H Kim, DR Lee…

Index: Lee, Joong Suk; Son, Seon Kyoung; Song, Sanghoon; Kim, Hyunjung; Lee, Dong Ryoul; Kim, Kyungkon; Ko, Min Jae; Choi, Dong Hoon; Kim, Bong Soo; Cho, Jeong Ho Chemistry of Materials, 2012 , vol. 24, # 7 p. 1316 - 1323

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Citation Number: 112

Abstract

We investigated the performance of ambipolar field-effect transistors based on a series of alternating low band gap polymers of oligothiophene and diketopyrrolopyrrole (pDPPT3-HD, pDPPT3-OD, pDPPT2TT-HD, and pDPPT2TT-OD). Herein, we report the high carrier mobilities and the good correlation between the interchain stacking of polymers and their device performance.