期刊
POLYMER
卷 68, 期 -, 页码 302-307出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2015.05.033
关键词
Conjugated copolymers; Field-effect transistor; Mobility
资金
- National Natural Science Foundation of China [51473021, 21474116, 51233006]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12030100]
- Major State Basic Research Development Program [2011CB808403]
Two donor acceptor copolymers, PTVTBT and PTVTBO, using the highly pi-extended (E)-2-(2-(thiophen2-yl)vinyl)thiophen as an electron-rich unit and benzodiathiazole or benzoxadiazole as an electron-deficient one, were designed and synthesized via a Pd-catalyzed Stille-coupling method. The copolymers possess high thermal stability, broad absorption, low band gap, and good film-forming ability. Meanwhile the two polymers exhibit excellent hole transport properties when used as the active layer in polymer field-effect transistor devices. The highest hole mobility can reach to 0.25 and 0.50 cm(2) V-1 s(-1) for the PTVTBT and PTVTBO thin films, respectively. This work demonstrates that PTVTBT and PTVTBO would be promising semiconductors for developing cost-effective and large-scale production of flexible organic electronics. (C) 2015 Elsevier Ltd. All rights reserved.
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