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Visible thermochromism in vanadium pentoxide coatings

Channam, Venkat Sunil Kumar and Qadir, Awais and Maury, Francis and Bahlawane, Naoufal Visible thermochromism in vanadium pentoxide coatings. (2017) ACS Applied Materials and Interfaces, 9 (25). 21447-21456. ISSN 1944-8244

(Document in English)

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Official URL: http://pubs.acs.org/doi/10.1021/acsami.7b04484


Although di-vanadium pentoxide (V2O5) has been a candidate of extensive research for over half a century, its intrinsic thermochromism has not been reported so far. Films of V2O5 grown on silicon, glass, and metal substrates by metal organic chemical vapor deposition in this study exhibit a thermally induced perceptible color change from bright yellow to deep orange. Temperature-dependent UV− vis spectroscopy and X-ray diffraction allow the correlation between the reversible continuous red shift of the absorption and the anisotropic thermal expansion along the (001) direction, that is, perpendicular to the sheets constituting the layered structure. Furthermore, the possibility of tuning the thermochromic behavior was demonstrated via a chemical doping with chromium

Item Type:Article
Additional Information:Thanks to ACS publications. The original PDF of the article can be found at ACS Applied Materials and Interfaces website : http://pubs.acs.org/doi/10.1021/acsami.7b04484
HAL Id:hal-01651488
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Luxembourg Institute of Science and Technology - LIST (LUXEMBOURG)
Laboratory name:
Deposited On:29 Nov 2017 08:57

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