Electrochromic WO3 films prepared by different film forming techniques - Details

author：

Wang, C. (Wang, C..) ^[1] | Chen, J.-J. (Chen, J.-J..) ^[2] | Luo, C.-L. (Luo, C.-L..) ^[3] | Li, Y. (Li, Y..) ^[4] | Wu, B. (Wu, B..) ^[5]

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Abstract：

The　effects　of　film　forming　techniques　on　sol-gel　derived　electrochromic　WO3　films　were　studied.　The　sol　prepared　by　the　peroxotungstic　acid　method　was　employed　for　the　deposition　of　WO3　films　by　pulse　electrophoretic　deposition　and　dip　coating　techniques　on　ITO　glass　substrates.　The　morphological　and　structural　characteristics,　optical　and　electrochemical　properties　of　the　films　were　investigated.　The　results　show　that　the　WO3　films　prepared　by　the　two　film　forming　techniques　are　consisted　of　amorphous　phase,　and　the　thicknesses　of　both　films　are　about　252　nm.　The　range　of　transmission　modulation　for　the　WO3　film　prepared　by　pulse　electrophoretic　depositing　is　up　to　80%　in　the　visible　region,　which　is　25%　higher　than　the　dip　coated　films.　The　pulse　electrophoresis　deposited　WO3　film　exhibits　higher　electrochemical　activity,　faster　response,　and　relatively　lower　reversibility　compared　with　the　dip　coated　WO3　film.

Keyword：

Electrochromism; Sol-gel; WO3 films

Community：

[ 1 ] [Wang, C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
[ 2 ] [Wang, C.]Institute of Surface Nanotechnology, Fuzhou University, Fuzhou 350108, China
[ 3 ] [Chen, J.-J.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
[ 4 ] [Luo, C.-L.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
[ 5 ] [Luo, C.-L.]Institute of Surface Nanotechnology, Fuzhou University, Fuzhou 350108, China
[ 6 ] [Li, Y.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
[ 7 ] [Wu, B.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
[ 8 ] [Wu, B.]Institute of Surface Nanotechnology, Fuzhou University, Fuzhou 350108, China

Reprint 's Address：

[Wang, C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China

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Source ：

Transactions of Materials and Heat Treatment

ISSN： 1009-6264

Year： 2012

Issue： SUPPL. 2

Volume： 33

Page： 117-123

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