SIC OpenIR
Controllable vapor phase polymerization of PEDOT films using imidazole as an inhibitor and their electrical and electrochromic properties
Wang, W; Xu, D; Huang, AB; Yuan, HH; Xie, JJ; Chen, XY; He, YL; Zhang, T; Shen, HJ
2020-11-01
Source PublicationSYNTHETIC METALS
ISSN0379-6779
SubtypeArticle
AbstractPEDOT films were fabricated by vapor-phase polymerization (VPP) with different inhibitor contents in oxidant containing solutions, and were characterized by X-ray diffraction, Raman spectroscopy, UV/vis transmittance spectra, atomic force microscopy, electrical conductivity and electrochromic measurements. The imidazole which serves as an inhibitor plays key roles on the polymerization reaction, and varying its content results in drastically different properties of the PEDOT films. In the imidazole/Fe(III) p-toluenesulfonate (Im/Fe) weight ratio range of 0 similar to 0.25, the rate of polymerization can be significantly slowed down by increasing the Im/Fe ratio. The optimum Im/Fe ratio of 0.1 and polymerization time of 3 h results in PEDOT films with the highest conductivity on glass substrate (626 S/cm). Higher doping level is found in PEDOT films fabricated with the Im/ Fe ratio above 0.1, causing low conductivity due to their loose morphology. The electrochromic properties of the films can be enhanced by prolonging the polymerization time to 3 h. It is found that the transmittance difference at 550 nm is above 10 % in PEDOT films fabricated with 3 h of polymerization. An electrochromic device is assembled and its coloring time is less than 3 s.
DOI10.1016/j.synthmet.2020.116523
WOS KeywordCONDUCTIVITY ; 3,4-ETHYLENEDIOXYTHIOPHENE ; POLY(3,4-ETHYLENEDIOXYTHIOPHENE) ; PERFORMANCE ; FABRICATION ; POLYMERS ; GROWTH
Language英语
WOS Research AreaMaterials Science ; Physics ; Polymer Science
PublisherELSEVIER SCIENCE SA
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27643
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wang, W,Xu, D,Huang, AB,et al. Controllable vapor phase polymerization of PEDOT films using imidazole as an inhibitor and their electrical and electrochromic properties[J]. SYNTHETIC METALS,2020.
APA Wang, W.,Xu, D.,Huang, AB.,Yuan, HH.,Xie, JJ.,...&Shen, HJ.(2020).Controllable vapor phase polymerization of PEDOT films using imidazole as an inhibitor and their electrical and electrochromic properties.SYNTHETIC METALS.
MLA Wang, W,et al."Controllable vapor phase polymerization of PEDOT films using imidazole as an inhibitor and their electrical and electrochromic properties".SYNTHETIC METALS (2020).
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