Enhanced Coloration Efficiency of Electrochromic Thin Film Based on TiO2 and Chitosan
- 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/).
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 -