Aligning one-dimensional arrays of nanoclusters on a thin film of Al2O3 grown on vicinal NiAl surfaces

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/38914

Title:	Aligning one-dimensional arrays of nanoclusters on a thin film of Al2O3 grown on vicinal NiAl surfaces
Authors:	Luo,MF;Huang,JY;Chiang,CI;Hu,GR;Wang,CC;Wang,CT;Lin,CW
Contributors:	物理研究所
Keywords:	CLUSTERS;AL2O3/NIAL(100);NIAL(001);ALUMINA;CO
Date:	2009
Issue Date:	2010-07-08 13:59:04 (UTC+8)
Publisher:	中央大學
Abstract:	We present a self-organised approach for the synthesis of one-dimensional (1D) arrays of supported nanoclusters. By oxidising NiAl surfaces vicinal to the (100) plane tilted along the crystallographic direction [010], we produced ordered thin films of theta-Al2O3 that exhibit uniform protrusion stripes propagating uniquely along direction [001] of the NiAl. These protrusions are preferential centres for nucleation of metal deposited from a vapour; the nanoclusters grown from such metal are aligned and form massive 1D cluster arrays along direction [001]. The arrays of Co nanoclusters exhibit a diameter as small as 3 nm and length exceeding a micrometer. The results imply prospective applications for which a patterned assembly of nanoclusters is desired. (C) 2008 Elsevier B.V. All rights reserved.
Relation:	SURFACE SCIENCE
Appears in Collections:	[Graduate Institute of Physics] journal & Dissertation

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