Paper Title:
Structural and Optical Properties of InSnO3 Sol-Gel Coatings to Use in Windows Glass Buildings
  Abstract

Indium stannate (InSnO3) films doping with small amounts of copper are made highly useful as architectural window coatings. Indium-tin-oxide (ITO) has attracted intense interest due to some of its unique characteristics; it has high optical transmittance in the visible region, low electric resistivity, and chemical stability. Therefore, ITO thin films have been found to play an important role in opto-electronic applications. In this work, uniform and transparent ITO films were deposited onto glass substrates using a sol-gel process. The initial sols were prepared by mixing solutions of indium chloride prepared in anhydrous ethanol with tin chloride and mechanically stirring and refluxed 2 hours and aged 2 week, the resultant mixture until a clear and sticky coating sol was obtained. The glass substrates were spin-coated and annealed at 500 °C. Because annealing conditions affect the microstructures, the properties of the resultant ITO films can be controlled. The optical transmittance of 200 nm thick ITO film was more than 80% in the visible region. The surface morphology examined by SEM appears to be uniform over large surface areas. The structural, microstructural and optical properties of the coatings and powders made from the sols were extensively characterized by using XRD, AFM and spectrophotometer techniques

  Info
Periodical
Advanced Materials Research (Volumes 168-170)
Edited by
Lijuan Li
Pages
2348-2351
DOI
10.4028/www.scientific.net/AMR.168-170.2348
Citation
L. D. J. Dominguez Gallegos, A. S. López Rodríguez, P. Sifuentes Gallardo, M. A. Hernández Rivera, M. G. Garnica Romo, L. L. Díaz Flores, "Structural and Optical Properties of InSnO3 Sol-Gel Coatings to Use in Windows Glass Buildings", Advanced Materials Research, Vols. 168-170, pp. 2348-2351, 2011
Online since
December 2010
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