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
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