期刊
NEW JOURNAL OF CHEMISTRY
卷 42, 期 7, 页码 4824-4834出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nj04184e
关键词
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资金
- National Natural Science Foundation of China [51762020, 51662012, 51463008]
- Natural Science Foundation of Jiangxi Province [20171ACB20026, 20161BAB206147]
- Provincial Department of Education [GJJ160762]
- Jiangxi Science and Technology Normal University [2015CXTD001, 2016QNBJRC001, YC2016-X15]
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation [20171BCD40015]
Freestanding flexible capacitive materials are ideal for use in bendable electronic devices. However, it is difficult to prepare pure PEDOT films in a freestanding state by chemical and electrochemical methods. Here, we used a simple strategy of introducing alkoxy, ether, ester, and amide chains for bridging two EDOT units to form precursors, which could then be electrodeposited readily to produce freestanding and flexible films. The precursor with the amide group was suitable for obtaining higher-quality films with improved thermal stability, mechanical properties, and capacitive performance. In addition, the asymmetric PBEDTA//PEDOT capacitors exhibited a capacitance retention rate of 98.5% after 5000 cycles, which is higher than those of PBEDTH//PEDOT (92.7%), PBEDTG//PEDOT (80.5%), and PBEDTE//PEDOT (86.8%) capacitors. This result indicates that the polymer films and, in particular, the PBEDTA films, are suitable for use in flexible supercapacitors.
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