Preparation, characterization and optical properties ofα-Fe2O3 films by sol-spinning process

α-Fe2O3 films were prepared by sol-spinning process using ferric nitrate as a precursor and 2-methoxy ethanol as the solvent. The films were grown on various substrates by spin coating and were subjected to different annealing temperatures. These were characterized using X-ray and fourier transform...

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Bibliographic Details
Published in:Bulletin of materials science 1998-10, Vol.21 (5), p.381-385
Main Authors: Chauhan, Pratima, Annapoorni, S, Trikha, S K
Format: Article
Language:English
Subjects:
Ethanol
Ferric nitrate
Fourier transforms
Infrared spectroscopy
Optical properties
Scanning electron microscopy
Spectrum analysis
Spin coating
Substrates
Thickness
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Summary:α-Fe2O3 films were prepared by sol-spinning process using ferric nitrate as a precursor and 2-methoxy ethanol as the solvent. The films were grown on various substrates by spin coating and were subjected to different annealing temperatures. These were characterized using X-ray and fourier transform infrared spectroscopy (FTIR). The films showed crystallinity at about 500°C. The surface morphology of these films was studied using scanning electron microscopy (SEM) which revealed cracks for films having thickness of the order of 2 µm. The band gap of these films was observed to be 2·1 eV from UV-vis spectroscopy.
ISSN:0250-4707
0973-7669
DOI:10.1007/BF02744922