Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference

Enhanced Coloration Efficiency of Electrochromic Thin Film Based on TiO2 and Chitosan

Authors
Shuping Liu, Wei Wang, Huanan Guan
Corresponding Author
Shuping Liu
Available Online June 2015.
DOI
10.2991/ap3er-15.2015.42How to use a DOI?
Keywords
Electrochromic; TiO2; Chitoasn;Layer-by-layer; coloration efficiency
Abstract

Self-assembled multilayer films containing TiO2 and chitosan (CS) were prepared using layer-by-layer method (LbL). The composite film fabricated on quartz and fluorine-doped tin oxide substrates was investigated using UV-vis spectroscopy, scanning electron microscopy (SEM), cyclic voltammetry (CV) and in situ chronoamperometric (CA) electrochemical measurements. The results of the UV-vis spectra confirm the uniformity of each deposition cycles. The electrochemical behavior of TiO2 has the typical property of a surface-confined electrochemical process. The composite film displays high electrochromic performance, with the coloration efficiency 33.3 cm2/C of and optical contrast of 17.1% at 800 nm. Furthermore, the film achieved a fast switching speed of 6.0 s and 0.5 s for coloration and bleaching, respectively. The composite material undergoes transitions from colorless to dark blue when the potential is switched from +2 V to -2 V. The electrochromic performance of the LbL film containing TiO2 and CS indicates that this material is highly beneficial in view of an application in electrochromic devices.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
Series
Advances in Engineering Research
Publication Date
June 2015
ISBN
10.2991/ap3er-15.2015.42
ISSN
2352-5401
DOI
10.2991/ap3er-15.2015.42How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Shuping Liu
AU  - Wei Wang
AU  - Huanan Guan
PY  - 2015/06
DA  - 2015/06
TI  - Enhanced Coloration Efficiency of Electrochromic Thin Film Based on TiO2 and Chitosan
BT  - Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
PB  - Atlantis Press
SP  - 177
EP  - 181
SN  - 2352-5401
UR  - https://doi.org/10.2991/ap3er-15.2015.42
DO  - 10.2991/ap3er-15.2015.42
ID  - Liu2015/06
ER  -