Electrical and optical properties of spin-coated SnO2 nanofilms
Abstract
SnO2 nanocrystalline thin films have been deposited on oxidized silicon substrates by spin-coating from a precursor solution, followed by slow thermal annealing in oxygen atmosphere at different temperatures (500 to 900 °C). The precursor solution consisted of 1.0 to 2.0 M SnCl4·5H2O in isopropanol. It was shown that the concentration of the precursor solution, annealing temperature and heating rate had a significant effect on the structural, optical and electrical properties of the studied thin films. The topography of SnO2 thin films was examined by scanning electron microscopy (SEM). Furthermore, as-deposited films were characterized by X-ray diffraction (XRD), UV-Vis and impedance spectroscopy.
© 2014 Weronika Izydorczyk, Krzysztof Waczyński, Jacek Izydorczyk, Paweł Karasiński, Janusz Mazurkiewicz, Mirosław Magnuski, Jerzy Uljanow, Natalia WaczyńskaNiemiec, Wojciech Filipowski, published by Wroclaw University of Science and Technology
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