Journal
APPLIED SURFACE SCIENCE
Volume 257, Issue 3, Pages 677-679Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2010.06.068
Keywords
Nanorods; Nanotubes; Hydrothermal method; Photoluminescence
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Funding
- National Natural Science Foundation of China [60676036, 10775106]
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Different morphologies of zinc oxide (ZnO) nanorods and nanotubes, which were grown under the same conditions but different dissolving processes, are prepared in our experiment through hydrothermal method. After the growth process, cooling down the reactor naturally or dissolving at a constant temperature of 40 degrees C, preferential dissolution will occur at different places on the tip of ZnO nanorods. During the dissolution process, different dissolution rates on the entire surface of nanorod will lead to different nanostructures. ZnO nanorods and nanotubes on Cu substrates display the same PL property with strong green emission but weak UV emission, while ZnO nanorods on Si substrates exhibits a relatively strong UV emission. (C) 2010 Elsevier B. V. All rights reserved.
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