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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/49983

    Title: Composition redistribution of self-assembled Ge islands on Si (001) during annealing
    Authors: Lee,SW;Chang,HT;Lee,CH;Cheng,SL;Liu,CW
    Contributors: 材料科學與工程研究所
    Date: 2010
    Issue Date: 2012-03-27 16:28:04 (UTC+8)
    Publisher: 國立中央大學
    Abstract: The annealing effects on the composition distribution of Ge islands on Si (001) were investigated by atomic force microscopy combined with selective wet chemical etching. Experimental results demonstrate that there is a strong composition redistribution occurring during island growth and postgrowth annealing. We observe that, once Ge superdomes appear, the asymmetric composition profile of the Ge domes transforms into an almost symmetric structure. Moreover, the Ge superdomes exhibit a double-ring composition profile of Si after long-time annealing. These phenomena could be explained within a simple thermodynamic model that involves only surface diffusion process. (C) 2009 Elsevier B.V. All rights reserved.
    Relation: THIN SOLID FILMS
    Appears in Collections:[材料科學與工程研究所 ] 期刊論文

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