Bis‐Diketopyrrolopyrrole Moiety as a Promising Building Block to Enable Balanced Ambipolar Polymers for Flexible Transistors

作者：Jie Yang, Hanlin Wang, Jinyang Chen, Jianyao Huang, Yingying Jiang, Jianqi Zhang, Longxian Shi, Yunlong Sun, Zhixiang Wei, Gui Yu, Yunlong Guo, Shuai Wang, Yunqi Liu · 发表于：Advanced Materials · 年份：2017 · DOI：10.1002/adma.201606162 · 被引用次数：129 · 研究领域：Organic Electronics and Photovoltaics、Conducting polymers and applications、Organic Light-Emitting Diodes Research

A bis-diketopyrrolopyrrole (DPP dimer, 2DPP) core is synthesized with much stronger electron deficiency than DPP by homocoupling of DPP. 2DPP-based polymers, P2DPP-BT, P2DPP-TT, P2DPP-TVT, and P2DPP-BDT, are obtained. Top-gated organic field-effect transistors on plastic substrate are fabricated. Compared with their mono-DPP-based polymers, remarkable improvement of electron mobilities of P2DPPs is achieved. Meanwhile, their p-channel performance becomes higher.