Electrochromic and Optical Study of Atmospheric Pressure Chemical Vapour Deposition MoO3–Cr2O3 Films
Electrochromism (EC) is a phenomenon in which materials are able to change their optical properties in a reversible and persistent way under the action of a voltage pulse. The studied MoO3–Cr2O3 films are obtained by atmospheric pressure CVD. Mixing MoO3 films with Cr2O3 is expected to enhance optical transparency and to modulate electrochromic properties of MoO3 films. In the present work, the study is focused on the morphological, structural and optical properties of MoO3–Cr2O3 films as a function of annealing temperatures. Raman spectroscopy and optical spectrophotometry are used for the film characterization. The mixed oxide films obtained on ordinary glass substrates show transmittance values in the range of 70–80%. Surface morphology is analyzed by SEM and AFM methods. The microanalysis of MoO3–Cr2O3 films reveals uniform distribution of the elements, which is a sign of homogeneous structure.
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Document Type: Research Article
Publication date: 01 September 2011
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