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题名: D-A(1)-D-A(2) Copolymer Based on Pyridine-Capped Diketopyrrolopyrrole with Fluorinated Benzothiadiazole for High-Performance Ambipolar Organic Thin-Film Transistors
作者: Li, Ping1; Xu, Long1; Shen, Hongguang3; Duan, Xianming1; Zhang, Jianqi4; Wei, Zhixiang4; Yi, Zhengran1; Di, Chong-an3; Wang, Shuai1, 2
关键词: donor-acceptor-donor-acceptor copolymer ; OTFT ; ambipolar ; electron mobility ; hole mobility ; annealing temperature
刊名: ACS APPLIED MATERIALS & INTERFACES
发表日期: 2016-04-06
卷: 8, 期:13, 页:8620-8626
收录类别: SCI
英文摘要: A novel donor-acceptor-donor-acceptor (D-A(1)-D-A(2)) pi-conjugated copolymer (PDBPyDT2FBT) has been prepared by Stifle coupling reaction. It is found that PDBPyDT2FBT exhibits low LUMO energy level mainly because of multiple electron-deficient units and donor-acceptor interaction, which is favorable to obtain more efficient electron injection and transport in organic thin-film transistors (OTFTs). Moreover, introducing two electron deficient moieties into the thiophene-containing copolymer increases the length of conjugated main chain and enhances the coplanarity of the backbone, which may be beneficial for promoting the molecular crystallinity and improving molecular ordering capability at low temperatures. High electron and hole mobilities up to 0.65 and 0.24 cm(2) V-1 s(-1) were obtained at relatively low annealing temperatures of 100 and 80 degrees C, respectively, implying that PDBPyDT2FBT is a promising ambipolar polymer semiconductor applied in low-cost and large-area manufacturing of OTFTs.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35981
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Huazhong Univ Sci & Technol, Minist Educ, Sch Chem & Chem Engn, Key Lab Large Format Battery Mat & Syst, Wuhan 430074, Peoples R China
2.Huazhong Univ Sci & Technol, FERC, Sch Mech Sci & Engn, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
4.Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China
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