Acceptor-Donor-Acceptor Conjugated Oligomers Based on Diketopyrrolopyrrole and Thienoacenes with Four, Five and Six Rings for Organic Thin-film Transistors

作     者：Qian Du Jing Shao Yao Gao Wei-li Li Hong-kun Tian Dong-hang Yan 耿延候 Fo-song Wang 

作者机构：School of Material Science and Engineering and Collaborative Innovation Centre of Chemical Science and Engineering(Tianjin)Tianjin University The 46th Institute of the Sixth Academy of China Aerospace Science&Industry Corporation State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied ChemistryChinese Academy of Sciences 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2017年第35卷第4期

页      面：480-489页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 081704[工学-应用化学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：financially supported by National Basic Research Program of China(973 Program,No.2014CB643504)of Chinese Ministry of Science and Technology the National Natural Science Foundation of China(No.51333006) the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB12010300) 

主　　题：Diketopyrrolopyrrole (DPP) Thienoacene Conjugated oligomers Organic thin-film transistors (OTFTs) 

摘      要：Three acceptor-donor-acceptor （A-D-A） conjugated oligomers, i.e., O1, 02 and 03, have been synthesized using diketopyrrolopyrrole （DPP） as an electron-acceptor unit, and naphtho[1,2-b：5,6-b＇]dithiophene （NDT）, anthra[1,2-b：5,6- b＇]dithiophene （ADT） or dithieno[3,2-b：Y,2＇-b＇]naphtbo[1,2-b：5,6-b＇]dithiophene （DTNDT） as electron-donor unit. These oligomers exhibit identical highest occupied molecular orbital （HOMO） and lowest unoccupied molecular orbital （LUMO） energy levels, which were ca. -5.1 and -3.3 eV, respectively. Upon thermal annealing, all three oligomers formed thin films with ordered microstructures, and their organic thin film transistors （OTFTs） exhibited p-type transport behavior. The mobility was increased with an extension of the size of D-units. 03 showed the best OTFT performance with the mobility of up to 0.20 cm2·V-1 ·s-1. The film quality of 03 was improved by adding 1 wt% poly（methylmethacrylate） （PMMA）. In consequence, the mobility of the O3-based devices was further enhanced to 0.30 cm2·V-1 ·s-1.