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Browse Journals & Magazines > Applied Physics Letters ...> Volume:98 Issue:11 Help

Effect of annealing on the microstructure and optical properties of ZnO/V2O5 composite

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6 Author(s)
Zou, C.W. ; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, People''s Republic of China ; Yan, X.D. ; Chen, R.Q. ; Wu, Z.Y.
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Vanadium pentoxide (V2O5) films capped with a thin ZnO layer were prepared by magnetron sputtering at room temperature. The effect of annealing on the microstructure and optical properties of films was systematically investigated. Results indicated that the initially smooth films transformed to porous composite nanocrystals at 500 °C and then further to agglomerated nanoslices at 550 °C. This microstructure transformation is attributed to the distinct temperature-sensitive crystallization of V2O5. The annealed films exhibited enhanced visible photoluminescence, which was attributed to the coupling between V2O5 nanorods and ZnO nanoparticles as well as the improved V2O5 crystallinity.

Published in:
Applied Physics Letters  (Volume:98 ,  Issue: 11 )

Date of Publication: Mar 2011

Page(s):
111904 - 111904-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.3566997
Product Type:
Journals & Magazines
Date of Current Version :
17 March 2011
Issue Date :
Mar 2011

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