Published online by Cambridge University Press: 21 February 2011
Selectively absorbing properties of indium tin oxide(ITO) thin film werecharacterized in UV-VIS-NIR wavelength regions. Sodium diffusion from glasspane had a bad influences on the properties of ITO layers. Sosilica-zirconia barrier layers were formed by sol gel dip coating. ITO filmson buffer layered glass pane were formed by sol gel dip coating.Transmittance and reflectivity dependence on the thickness of barrier layerand ITO coating layers were studied by measuring sheet resistance andUV-VIS-NIR spectroscopy.
Transparency at 550 nm wavelegth and selective reflectivities were importantto apply to passive solar collectors. In single barrier layer and six-foldITO coated films, good selectivities were obtained. Homogeneity of indiumtin precursor coating solution was important. Atmosphere condition(humidity, temperature), dip and drawing conditions were also additionalfactors for uniformity of films.