Journal
APPLIED SURFACE SCIENCE
Volume 289, Issue -, Pages 252-256Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2013.10.146
Keywords
Oxygen plasma; Photoluminescence; Hydrothermal crystal growth; Zinc oxide
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Funding
- National Science Foundation of China [51232006, 51102212]
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Well-aligned ZnO nanorod arrays were prepared on Si substrates modified with ZnO seeds using a low temperature hydrothermal method. In particular, photoluminescence (PL) properties of the ZnO nanorods can be easily tuned by varying the treatment duration of O-2 plasma. Penetration depth of oxygen ions near the surface is suggested to influence the effect of O-2 plasma on modification of PL properties for ZnO nanorods with different sizes. O-2 plasma-tuned optical quality for ZnO nanorods has been attributed to the change of depletion region width. (C) 2013 Elsevier B.V. All rights reserved.
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