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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28567

Title: Raman scattering characterization of well-aligned RuO2 and IrO2 nanocrystals
Authors: Alexandru V. Korotcov;Ying-Sheng Huang;Kwong-Kau Tiong;Dah-Shyang Tsai
Contributors: NTOU:Department of Electrical Engineering
國立臺灣海洋大學:電機工程學系
Keywords: IrO2;RuO2;nanocrystals;Raman spectroscopy
Date: 2007-06
Issue Date: 2011-10-21T02:38:10Z
Publisher: Journal of Raman Spectroscopy
Abstract: Abstract:Raman spectroscopy (RS) has been used as a technique for the characterization of well-aligned IrO2 and RuO2 nanocrystals (NCs) grown on a number of different oriented substrates under various conditions. The IrO2 and RuO2 NCs were grown via metalorganic chemical vapor deposition and reactive magnetron sputtering. The relative intensity of the three strongest Raman-active modes, namely, the A1g, B2g and Eg modes, depends on the orientation of NCs and has been used to determine the preferred growth direction of the NCs. The redshifts and asymmetric linewidth broadening of the Raman features of IrO2 and RuO2 NCs with respect to that of their bulk counterparts were analyzed by a modified spatial correlation (MSC) model, which includes a factor of stress-induced shift. The MSC model showed that the effects of stress and nanometric size could be separated in analyzing the observed Raman features. The usefulness of experimental RS together with the MSC model analysis as a structural and residual stress characterization technique for NCs has been demonstrated. Copyright © 2007 John Wiley & Sons, Ltd.
Relation: 38(6), pp.737-749
URI: http://ntour.ntou.edu.tw/handle/987654321/28567
Appears in Collections:[電機工程學系] 期刊論文

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