文献类型：期刊文献

英文题名：Optical, electrochemical, photoelectrochemical and electrochromic properties of polyamide/graphene oxide with various feed ratios of polyamide to graphite oxide

作者：Ma, Lina[1];Niu, Haijun[1];Cai, Jiwei[1];Zhao, Ping[2,3];Wang, Cheng[1];Lian, Yongfu[1];Bai, Xuduo[1];Wang, Wen[4]

机构：[1]Heilongjiang Univ, Sch Chem & Chem Engn, Dept Macromol Mat & Engn, Key Lab Funct Inorgan Mat Chem,Minist Educ, Harbin 150086, Peoples R China;[2]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[4]Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China

年份：2014

卷号：2

期号：12

起止页码：2272

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY C

收录：;EI(收录号：20141017434756);WOS:【SCI-EXPANDED(收录号:WOS:000332130000023)】；

基金：The authors are grateful to the support of the National Science Foundation of China (Grant no. 51373049, 51372055, 51273056, 21372067), Doctoral Fund of Ministry of Education of China (20132301120004 and 20132301110001), Foundation of Heilongjiang Education Bureau (Grant no. 12531504), Heilongjiang University Graduate-student Innovation Scientific Research Projects and Foundation of Heilongjiang University Innovator Group (no. hdtd-2010-11).

语种：英文

外文关键词：Electrochemical impedance spectroscopy - Graphene oxide - Electrochromism - Charge transfer - Electrochromic devices - Photoelectricity - Infrared devices

摘要：A series of novel multicoloured near-infrared electrochromic polyamide (PA)-based nanocomposites with graphene were successfully prepared via in situ chemical polymerization with various feed ratios of PA to graphene oxide (GO) (PA : GO = 999 : 1, 199 : 1, 49 : 1, 19 : 1, 1 : 0). The prepared nanocomposites were readily soluble in many organic solvents and displayed outstanding thermal resistance, stability of electrochromic characteristics, high coloration efficiency, short switching time, and anodic electrochromic behavior, and showed a good and uniform dispersion of the GO sheets in the PA matrix. The typical, stable photoelectrical response showed that there was charge transfer in the interior of the composites film under illumination, and the enhanced electrochemical performance was also investigated by electrochemical impedance spectroscopy (EIS) technique. The content of GO played a pivotal role in the electron transfer and regulated the conductivity of the composites. The properties prove that the composite is a multipurpose material which will cater for photoelectric conversion and electrochromic application.