Thiazole Imide-Based All-Acceptor Homopolymer: Achieving High-Performance Unipolar Electron Transport in Organic Thin-Film Transistors

Shi, Yongqiang1,2; Guo, Han1,2; Qin, Minchao3; Zhao, Jiuyang1,2; Wang, Yuxi1,2; Wang, Hang1,2; Wang, Yulun1,2; Facchetti, Antonio4,5; Lu, Xinhui3; Guo, Xugang1,2

2018-03-08

10.1002/adma.201705745

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

High-performance unipolar n-type polymer semiconductors are critical for advancing the field of organic electronics, which relies on the design and synthesis of new electron-deficient building blocks with good solubilizing capability, favorable geometry, and optimized electrical properties. Herein, two novel imide-functionalized thiazoles, 5,5-bithiazole-4,4'-dicarboxyimide (BTzI) and 2,2'-bithiazolothienyl-4,4',10,10'-tetracarboxydiimide (DTzTI), are successfully synthesized. Single crystal analysis and physicochemical study reveal that DTzTI is an excellent building block for constructing all-acceptor homopolymers, and the resulting polymer poly(2,2-bithiazolothienyl-4,4,10,10-tetracarboxydiimide) (PDTzTI) exhibits unipolar n-type transport with a remarkable electron mobility (mu(e)) of 1.61 cm(2) V-1 s(-1), low off-currents (I-off) of 10(-10)-10(-11) A, and substantial current on/off ratios (I-on/I-off) of 10(7)-10(8) in organic thin-film transistors. The all-acceptor homopolymer shows distinctive advantages over prevailing n-type donor-acceptor copolymers, which suffer from ambipolar transport with high I(off)s > 10(-8) A and small I-on/I(off)s < 10(5). The results demonstrate that the all-acceptor approach is superior to the donor-acceptor one, which results in unipolar electron transport with more ideal transistor performance characteristics.

all-acceptor homopolymers imide-functionalized thiazoles n-type polymer semiconductors organic thin-film transistors unipolar transport

SCI ; EI

英语

NI期刊

第一 ; 通讯

Shenzhen Peacock Plan Project[KQTD20140630110339343]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000426720400018

WILEY-V C H VERLAG GMBH

20180404665605

Electron transport properties ; Homopolymerization ; Polymers ; Single crystals ; Single electron transistors ; Thin film transistors ; Thin films

Semiconductor Devices and Integrated Circuits:714.2 ; Polymeric Materials:815.1 ; Polymerization:815.2 ; Crystalline Solids:933.1

MATERIALS SCIENCE

Web of Science

1.South Univ Sci & Technol China, Dept Mat Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
2.South Univ Sci & Technol China, Shenzhen Key Lab Printed Organ Elect, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
3.Chinese Univ Hong Kong, Dept Phys, Hong Kong 999077, Hong Kong, Peoples R China
4.Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
5.Northwestern Univ, Mat Res Ctr, Evanston, IL 60208 USA

Shi, Yongqiang,Guo, Han,Qin, Minchao,et al. Thiazole Imide-Based All-Acceptor Homopolymer: Achieving High-Performance Unipolar Electron Transport in Organic Thin-Film Transistors[J]. ADVANCED MATERIALS,2018,30(10).

Shi, Yongqiang.,Guo, Han.,Qin, Minchao.,Zhao, Jiuyang.,Wang, Yuxi.,...&Guo, Xugang.(2018).Thiazole Imide-Based All-Acceptor Homopolymer: Achieving High-Performance Unipolar Electron Transport in Organic Thin-Film Transistors.ADVANCED MATERIALS,30(10).

Shi, Yongqiang,et al."Thiazole Imide-Based All-Acceptor Homopolymer: Achieving High-Performance Unipolar Electron Transport in Organic Thin-Film Transistors".ADVANCED MATERIALS 30.10(2018).