Well-balanced ambipolar diketopyrrolopyrrole-based copolymers for OFETs,inverters and frequency doublers  

作　　者：Jiaxin Yang Qingqing Liu Mengxiao Hu Shang Ding Jinyu Liu Yongshuai Wang Dan Liu Haikuo Gao Wenping Hu Huanli Dong 

机构地区：[1]Beijing National Laboratory for Molecular Sciences,Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing,100190,China [2]School of Chemical Sciences,University of Chinese Academy of Sciences,Beijing,100049,China [3]Tianjin Key Laboratory of Molecular Optoelectronic Sciences,Department of Chemistry,School of Science,Tianjin University&Collaborative Innovation Center of Chemical Science and Engineering,Tianjin,300072,China

出　　处：《Science China Chemistry》2021年第8期1410-1416,共7页中国科学（化学英文版）

基　　金：This work is financially supported by the Ministry of Science and Technology of China(2018YFA0703200,2017YFA0204503);the National Natural Science Foundation of China(91833306,61890943,51725304,22021002);Beijing National Laboratory for Molecular Sciences(BNLMS-CXXM-202012),the Youth Innovation Promotion Association of the Chinese Academy of Sciences,and the National Program for Support of Top-notch Young Professionals.

摘　　要：Conjugated polymers with well-balanced ambipolar charge transport is essential for organic circuits at low cost and large area with simplified fabrication techniques.Aiming at this point,herein,a novel asymmetric thiophene/pyridine-flanked diketopyrrolopyrrole-based copolymer(PPyTDPP-2FBT)is designed and synthesized.Due to the effect of incorporating F atoms on molecular energy alignment and conjugation conformation,the PPyTDPP-2FBT copolymer exhibits typical V-shaped ambipolar field-effect transfer characteristics with well-balanced hole and electron mobilities of 0.64 and 0.46 cm^(2)V^(−1)s^(−1),respectively.Furthermore,organic digital and analog circuits such as inverters and frequency doublers are successfully constructed based on solution-processed films of the PPyTDPP-2FBT copolymers which show a typical circuit operating mode with a high gain of 133 due to the well-balanced electrical properties.In addition,PPyTDPP-2FBT-based devices also demonstrate good stability and batch repeatability,suggesting their great potential applications in organic integrated electronic circuits.

关 键 词：conjugated polymers balanced ambipolar transport property organic field effect transistor inverter frequency doubler 

分 类 号：TN77[电子电信—电路与系统] TM464[电气工程—电器] TQ317[化学工程—高聚物工业]