| Effect of sintering on optical, structural and photoluminescence properties of ZnO thin films prepared by sol-gel process. | |
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MedLine Citation:
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PMID: 20605738 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Zinc oxide (ZnO) thin films have been deposited on glass substrates via sol-gel technique using zinc acetate dihydrate as precursor by spin coating of the sol at 2000 rpm. Effects of annealing temperature on optical, structural and photo luminescence properties of the deposited ZnO films have been investigated. The phase transition from amorphous to polycrystalline hexagonal wurtzite structure was observed at an annealing temperature of 400 degrees C. An average transmittance of 87% in the visible region has been obtained at room temperature. The optical transmittance has slightly increased with increase of annealing temperature. The band gap energy was estimated by Tauc's method and found to be 3.22 eV at room temperature. The optical band gap energy has decreased with increasing annealing temperature. The photoluminescence (PL) intensity increased with annealing temperature up to 200 degrees C and decreased at 300 degrees C. |
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Authors:
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M Vishwas; K Narasimha Rao; K V Arjuna Gowda; R P S Chakradhar |
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Publication Detail:
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Type: Journal Article Date: 2010-05-05 |
Journal Detail:
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Title: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Volume: 77 ISSN: 1873-3557 ISO Abbreviation: Spectrochim Acta A Mol Biomol Spectrosc Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-07-12 Completed Date: 2010-11-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9602533 Medline TA: Spectrochim Acta A Mol Biomol Spectrosc Country: England |
Other Details:
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Languages: eng Pagination: 330-3 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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Department of Physics, M.V.J. College of Engineering, Bangalore 560067, India. vishu 792005@yahoo.co.in |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Gels
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chemistry* Glass / chemistry Luminescent Measurements / methods* Optical Phenomena* Refractometry Spectrum Analysis Temperature X-Ray Diffraction Zinc Oxide / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Gels; 1314-13-2/Zinc Oxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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