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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Cu在ZrO2(111)薄膜载体上的生长与界面相互作用
DOI: 10.3724/SP.J.1088.2012.20640, PP. 1712-1716
Keywords: 铜,二氧化锆,低能电子衍射谱,X射线光电子能谱,同步辐射光电子能谱,界面相互作用,初态效应,终态效应
Abstract:
？采用分子束外延法在Pt(111)单晶表面上制备有序的ZrO2(111)薄膜,利用低能电子衍射谱、同步辐射光电子能谱和X射线光电子能谱研究了Cu纳米颗粒在ZrO2(111)薄膜表面的生长模式和界面相互作用.结果表明,室温下Cu先以二维模式生长到0.15单层(ML),接着以三维模式生长.随着Cu覆盖度的减小,Cu2p3/2峰逐渐向高结合能位移,可归因于初态效应和终态效应共同作用的结果.Cu最初沉积到ZrO2表面时,两者间存在较强的相互作用,Cu向ZrO2衬底传递电荷,以Cu(I)形式出现.当Cu覆盖度增加到1ML以后,Cu开始表现出金属特征.
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