Tetramethylammonium Iodide Additive for Enhancing the Charge Carrier Mobilities of Diketopyrrolopyrrole-Based Conju-gated Polymer in Ambipolar Organic Field-Effect Transistors  

作　　者：Waner He Qian Liu Sultan Otep Hidetoshi Matsumoto Sergei Manzhos Prashant Sonar Aung Ko Ko Kyaw Tsuyoshi Michinobu 

机构地区：[1]Department of Materials Science and Engineering,Tokyo Institute of Technology,Tokyo 152-8552,Japan [2]Guangdong University Key Laboratory for Advanced Quantum Dot Displays,Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,Guangdong 518055,China [3]Center for Materials Science,School of Chemistry and Physics,Faculty of Science,Queensland University of Technology,Brisbane,QLD 4000,Australia [4]School of Materials and Chemical Technology,Tokyo Institute of Technology,Tokyo 152-8552,Japan

出　　处：《Chinese Journal of Chemistry》2023年第9期1028-1036,共9页中国化学（英文版）

基　　金：the National Natural Science Foundation of China(grant no.62150610496);Department of Education of Guangdong Province University Innovation Foundation(2021KTSCX107);Shenzhen Science,Technology and Innovation Commission(JCYJ20220530113014033).P.S.is thankful to QUT for the financial support from the Australian Research Council(ARC)for the Discovery Grant(DP210103006)and QUT core funding(QUT/322120-0301/07);The synchrotron radiation experiments were performed at BL40B2 in SPring-8 with the approval of JASRI(Proposal No.2020A0651);The authors thank Dr.Hiroyasu Masunaga and Dr.Noboru Ohta(Japan Synchrotron Radiation Research Institute:JASRI)for assistance in the GIWAXS experiments。

摘　　要：Diketopyrrolopyrrole(DPP)is one of the most promising building blocks for constructing polymer semiconductors with high charge-carrier mobilities in organic field-effect transistors(OFETs).In this study,a novel DPP-based conjugated polymer,PDPPy-BDD,was designed and synthesized.The ambipolar field-effect transistor characteristics were realized with the average hole and electron mobilities of 3.5×10^(-3)and 3.07×10^(-2)cm^(2)V^(-1)s^(-1),respectively.Both the hole and electron mobilities could be successfully en-hanced by using a tetramethylammonium iodide(NMe4l)additive.Such an enhancement was attributed to the formation of stronger interchainπ-πstackings,the weakening of the face-on packing orientation in the thin film state,and the higher channel conductivi-ties in the OFETs.

关 键 词：DIKETOPYRROLOPYRROLE Pyridine Charge transport Conjugated polymers Organic field-effect transistors Semiconductors Tetramethylammonium iodide Thin films 

分 类 号：TN386[电子电信—物理电子学]