Electrochromic and Optical Study of Atmospheric Pressure Chemical Vapour Deposition MoO3–Cr2O3 Films

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Abstract:

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.

Keywords: APCVD; OPTICAL PROPERTIES; RAMAN SPECTROSCOPY; TRANSITION METAL OXIDES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2011.5035

Publication date: September 1, 2011

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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