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V. K. RESHMY1, K. G. GOPCHANDRAN2, V. K. VAIDYAN1,*
- Department of Physics, University of Kerala, Kariavattom-695581, Kerala, India
- Department of Optoelectronics, University of Kerala, Kariavattom-695581, Kerala, India
Tin oxide nanocrystalline thin films were prepared using spray pyrolysis. The microstructural properties of thin films were characterized using X-ray diffraction. The particle size is found to be sensitive to substrate temperature and is in nanometric regime. Transmission spectra showed size dependent blue shift of the optical band gap which can be attributed to quantum confinement effect. In addition to Raman active and IR active modes, the micro Raman spectrum of SnO2 thin films showed disorder activated modes and surface phonon modes due to nanosize effect..
Tin oxide, thin films, Raman spectrum, FTIR.
Submitted at: Nov. 20, 2018
Accepted at: Oct. 9, 2019
V. K. RESHMY, K. G. GOPCHANDRAN, V. K. VAIDYAN, Optical and Raman studies of nanocrystallinetinoxide thin films prepared by spray pyrolysis, Journal of Optoelectronics and Advanced Materials Vol. 21, Iss. 9-10, pp. 609-617 (2019)
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