%0 Journal Article
%T Effect of Solvent Content on the Properties of Nanostructure Silica Thin Film by Sol-Gel
%J Nanoscience and Nanotechnology
%@ 2163-2588
%D 2012
%I 
%R 10.5923/j.nn.20120201.05
%X It is known that silica sol-gel coatings microstructure depend on the components of the sol. In order to develop different microstructures of the silica coatings and comparing their optical properties, a variety of silica sols were prepared which were consist of TEOS, water, catalyst and changing the solvent content, at room temperature. Prepared glass surfaces were coated with silica sol using a dipping technique, with constant withdrawing rate. Prepared coatings were investigated by field-emission scanning electron microscopy (FE-SEM) and UV¨CVis. spectroscopy. Transmittance spectra showed that silica coatings featured a distinct increase of substrate transmittance at all wavelengths (400-1100 nm). The result indicated that by increasing the solvent content, the porosity of coating increased and the coating was more densified therefore the silica coating transmittance increased by 3-4% points. FE-SEM showed that the nanostructure silica coating grain size were estimated ~20-40 nm.
%K Solvent content
%K Silica
%K Transmittance
%K Sol-gel
%K Dip-coating
%U http://article.sapub.org/10.5923.j.nn.20120201.05.html