期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 41, 期 29, 页码 12626-12633出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2016.02.039
关键词
Transparent conducting oxides; Thin films; Annealing; Optical parameters; Solar cells
Polycrystalline, fluorine doped tin oxide (SnO2:F) thin films were prepared by the low cost spray pyrolysis (SP) technique on glass substrates at 400 degrees C. To study the influence of annealing on the optical properties, the films were annealed in nitrogen atmosphere at 400 degrees C for 30 min. Scanning electron microscopy (SEM), energy dispersion X-ray spectroscopy (EDX), and transmittance spectroscopy were used to characterize the films. It is found that annealing reduces the transmittance and direct optical bandgap energy, and increases the reflectance, extinction coefficient, refractive index, real and imaginary parts of the dielectric constant, dispersion parameters, loss factor, and optical conductivity. These results are important for the use of tin oxide in solar cells and optoelectronic devices. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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