Formation and cathodoluminescence of Al:ZnO nanoscrew clusters

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Title:	Formation and cathodoluminescence of Al:ZnO nanoscrew clusters
Authors:	Lin, Yu-Hung Lin, Chiung-Ching Wu, Jyh-Ming Chen, Uei-Shin Chen, Jiann-Ruey Shih, Han C.
Contributors:	化材系
Keywords:	Cathodoluminescence (CL) AZO Thermal evaporation
Date:	2008
Issue Date:	2009-11-03 10:57:42 (UTC+8)
Abstract:	Al:ZnO nanoscrew clusters were prepared by thermal evaporation at a synthesizing temperature of 500 degrees C. The morphology and structure of the as-synthesized nanostructures were characterized by field emission scanning electron microscopy, X-ray diffraction and transmission electron microscopy, indicating that the Al:ZnO nanostructures have a single crystalline hexagonal wurtzite structure. The proposed growth mechanism involves the formation of Al:ZnO nanoscrew clusters in a heterogeneous nucleation process. The optical properties measured by cathodoluminescence, showed that the Al:ZnO nanoscrew clusters exhibit luminescence at three wavelengths -380 nm (UV emission), 490 nm (green emission) and 764 nun (near-IR emission). (C) 2008 Published by Elsevier B.V.
Relation:	THIN SOLID FILMS Volume: 517 Issue: 3 Pages: 1225-1229
Appears in Collections:	[Department of Chemical & Materials Engineering] journal articles

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