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Preparation, characterization and optical properties ofα-Fe2O3 films by sol-spinning process
Pratima Chauhan S Annapoorni S K Trikha
Materials Preparation Volume 21 Issue 5 October 1998 pp 381-385
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https://www.ias.ac.in/article/fulltext/boms/021/05/0381-0385 -
Keywords
Sol-spinning ;precursor ;nanocrystalline -
Abstract
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.
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Author Affiliations
Pratima Chauhan1 S Annapoorni1 S K Trikha1
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110 007, India
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Dates
- Published
- October 1998
- Manuscript received
- 19 May 1998
- Manuscript revised
- 19 July 1998
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