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An investigation of the Cu/ZnO/Zn system: evidence for the formation of Cu-Zn alloys by the inward diffusion of Cu

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dc.contributor.author Harikumar, K R
dc.contributor.author Santra, A K
dc.contributor.author Rao, C N R
dc.date.accessioned 2012-11-15T06:51:22Z
dc.date.available 2012-11-15T06:51:22Z
dc.date.issued 1996-02
dc.identifier 0169-4332 en_US
dc.identifier.citation Applied Surface Science 93(2), 135-141 (1996) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/971
dc.description Restricted Access en_US
dc.description.abstract Cu deposited on 5 or 10 Å thick ZnO layers (grown on Zn metal), has been investigated as a function of Cu coverage by employing X-ray photoelectron and Auger electron spectroscopies. The 2p core-level binding energy of Cu increases with decreasing metal coverage, the maximum shift observed (with respect to bulk Cu metal) at the smallest coverage being ∼ 0.9 eV. Temperature dependent studies show that Cu diffuses through the ZnO layer with the rate of diffusion varying with the substrate temperature as well as the oxide layer thickness. The inward diffusion of Cu results in the formation of CuZn alloys. Diffusion kinetic experiments at different temperatures show that the activation energy for diffusion increases with the increasing oxide layer thickness. en_US
dc.description.uri http://dx.doi.org/10.1016/0169-4332(95)00316-9 en_US
dc.language.iso en en_US
dc.publisher Elsevier Science BV en_US
dc.rights © 1996 Elsevier Science BV en_US
dc.subject Methanol-Synthesis Catalysts en_US
dc.subject Metal-Clusters en_US
dc.subject Spectroscopy en_US
dc.subject Interface en_US
dc.subject Growth en_US
dc.subject Model en_US
dc.title An investigation of the Cu/ZnO/Zn system: evidence for the formation of Cu-Zn alloys by the inward diffusion of Cu en_US
dc.type Article en_US


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