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Issue 37, 2012
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Fast fabrication of a WO3·2H2O thin film with improved electrochromic properties

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Abstract

By using electrochemical activated FTO glass as both a substrate and catalyst, we developed a facile and fast method to fabricate a WO3·2H2O thin film with a thickness of ∼100 nm. Due to the specific layered crystal structure of the dihydrated phase and the good contact with the transparent conductive oxides (TCOs) layer, the as-prepared WO3·2H2O thin film achieved a fast coloration/bleaching response speed (tc,90% = 3.2 s, tb,90% = 1.2 s), excellent cyclic stability, wide optical modulation range up to 53.8% and a high coloration efficiency of 107.8 cm2 C−1. A solid-state electrochromic device with a size of 5 cm × 5 cm was also fabricated, exhibiting high transparency contrast and good reversibility between the bleached and colored states.

Graphical abstract: Fast fabrication of a WO3·2H2O thin film with improved electrochromic properties

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Publication details

The article was received on 06 Jun 2012, accepted on 10 Aug 2012 and first published on 13 Aug 2012


Article type: Paper
DOI: 10.1039/C2JM33622G
Citation: J. Mater. Chem., 2012,22, 19904-19910
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    Fast fabrication of a WO3·2H2O thin film with improved electrochromic properties

    Z. Xie, L. Gao, B. Liang, X. Wang, G. Chen, Z. Liu, J. Chao, D. Chen and G. Shen, J. Mater. Chem., 2012, 22, 19904
    DOI: 10.1039/C2JM33622G

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