The effects of annealing temperature on structural and optical properties of S-doped ZnO nanobelts
In this study, the effects of thermal annealing temperature on the structural and optical properties of S-doped ZnO nanobelts were investigated. The XRD pattern shows that the crystallinity of S-doped ZnO nanobelts improves with increased annealing temperature. Room temperature photoluminescence spe...
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| Format: | Article |
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Elsevier
2010
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| Online Access: | http://eprints.um.edu.my/15259/ |
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| Summary: | In this study, the effects of thermal annealing temperature on the structural and optical properties of S-doped ZnO nanobelts were investigated. The XRD pattern shows that the crystallinity of S-doped ZnO nanobelts improves with increased annealing temperature. Room temperature photoluminescence spectroscopy of the as-grown S-doped ZnO nanobelts shows no detectable ultraviolet peak with the broad peaks in the visible emission region at 480, 505, and 518 nm. A weak peak in the ultraviolet region at 383 nm appears after annealing at 400 and 600 degrees C. Raman spectroscopy of the sample also shows a significant change with an increase in the annealing temperature. (C) 2009 Elsevier Masson SAS. All rights reserved. |
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