Title: | Growth and characterization of Zn-ZnO core-shell polygon prismatic nanocrystals on Si |
Authors: | Lin, CC Liu, KH Chen, SY 材料科學與工程學系 Department of Materials Science and Engineering |
Keywords: | photo luminescence;nanocrystals;Zn;ZnOx |
Issue Date: | 1-Sep-2004 |
Abstract: | Zn precursor synthesized from Zn(ClO4)(2) Solution was used as nucleation seeds for the growth of Zn polygon prismatic nanocrystals on silicon via a thermal vapor transport at low temperatures of 150-400degreesC (substrate) in Ar atmosphere. Depending on different reaction temperature and atmosphere, Zn-ZnO core-shell polygon prismatic nanocrystals with a dimension from nanometer to micrometer can be developed as evidenced from high-resolution transmission electron microscopy and auger nanoprobe electron spectroscopy analysis. The Zn-ZnO polygon prismatic structure shows weak UV emission and strong deep-level emission. However, photoluminescence properties and crystallization of Zn-ZnO prismatic nanocrystals could be improved by suitable post-treatment. (C) 2004 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.jcrysgro.2004.05.064 http://hdl.handle.net/11536/26413 |
ISSN: | 0022-0248 |
DOI: | 10.1016/j.jcrysgro.2004.05.064 |
Journal: | JOURNAL OF CRYSTAL GROWTH |
Volume: | 269 |
Issue: | 2-4 |
Begin Page: | 425 |
End Page: | 431 |
Appears in Collections: | Articles |
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