Electrochromic properties of multi-layer WO3 / TiO2 films made by electrochemical deposition

Tran Thi Thao, Dang Hai Ninh, Nguyen Minh Quyen, Pham Duy Long, Nguyen Nang Dinh

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Published Sep 15, 2011

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THAO, Tran Thi et al. Electrochromic properties of multi-layer WO3 / TiO2 films made by electrochemical deposition. VNU Journal of Science: Mathematics - Physics, [S.l.], v. 27, n. 3, sep. 2011. ISSN 2588-1124. Available at: <https://js.vnu.edu.vn/MaP/article/view/1524>. Date accessed: 05 may 2024.
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Issue
Vol 27 No 3
Section
Review Article

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Abstract

Abstract: Multilayer thin films of WO3/TiO2/FTO containning inorganic heterojunctions such as TiO2/FTO and WO3/TiO2 were prepared by electro-chemical deposition technique. From the cyclic voltammetry (CV) characteristics one can suggest that in the WO3/TiO2/FTO multi-layer films there is also W-doped TiO2 structure, creating multi-heterojunctions of  WO3, TiO2:W, TiO2 and F-doped SnO2. Combining CV, time-current characteristic, in-situ transmittance spectra, the electrochromic performance of WO3/TiO2/FTO was revealed. It is seen that the multi-layer electrochromic devices exhibited much larger electrochromic efficiency and faster response time than that of a standard single layer electrochromic device.

Keywords: Electrochromic device (ECD), Electrochemical deposition, in-situ transmittance spectra, ion insertion / extraction, heterojunction.

References

[1] C. G. Granqvist, Handbook of inorganic electrochromic materials, Elsevier, Amsterdam, 1995.
[2] A. Karuppasamy and A. Subrahmanyam, Studies on electrochromic smart windows based on titanium doped WO3 thin films, Thin Solid Films 516 (2007) 175 –178.
[3] L. Meda, R. C. Breitkopf, T. E. Haas and R. U. Kirss, Investigation of electrochromic properties of nanocrystalline tungsten oxide thin film, Thin Solid Films 402 (2002)126 –130.
[4] G. Beydaghyan, G. Bader, P.V. Ashrit, Electrochromic and morphological investigation of dry-lithiated nanostructured tungsten trioxide thin films, Thin Solid Films 516 (2008) 1646 – 1650.
[5] N. N. Dinh, N. Th. T. Oanh, P. D. Long, M. C. Bernard, A. Hugot-Le Goff, Electrochromic properties of TiO2 anatase thin films prepared by dipping sol-gel method, Thin Solid Films 423 (2003) 70 – 76.
[6] Nguyen Nang Dinh, Nguyen Minh Quyen, Do Ngoc Chung, Marketa Zikova,Vo-Van Truong, Highly-efficient electrochromic performance of nanostructured TiO2 films made by doctor blade technique, Sol. Energy Mat. Sol. Cells 95 (2011) pp. 618 – 623.
[7] G. Campet, J. Portier, S. J. Wen, B. Morel, M. Bourrel, J. M. Chabagno, Electrochromism and electrochromic windows, Active and Passive Elec.Comp., 14 (1992) 225 – 231.
[8] Pham Duy Long, Nguyen Nang Dinh, M.C. Bernard and A. Hugo - Le Goff, Preparation and study of electrochromic properties of tunsten oxides films made by electrochemical method, Comm. in Phys. 10 (2000) N.3, 164-170.
[9] C. G. Granqvist, A. Azens, P. Heszler, L. B. Kish, L. Österlund, Nanomaterials for benign indoor environments: Electrochromics for “smart windows”, sensors for air quality, and photo-catalysts for aircleaning, Sol. Energy Mat. Sol. Cells 91 (2007) 355 – 365.