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Effects of surface passivation and interfacial reaction on the size-dependent 2p-level shift of supported copper nanosolids
Sun Changqing * #
Nanyang Technological University
*Correspondence author
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Funding: none
Opened online:15 July 2005
Accepted by: none
Citation: Sun Changqing.Effects of surface passivation and interfacial reaction on the size-dependent 2p-level shift of supported copper nanosolids[OL]. [15 July 2005] http://en.paper.edu.cn/en_releasepaper/content/2458
 
 
Effects of surface passivation and particle-substrate interfacial reaction on the size dependent 2p3/2-level shift of nanosolid Cu have been numerically analyzed, leading to information about the reactivity of Cu nanosolid with different substrates, such as graphite, polymer and alumina. It has been found that Ar+ bombardment promotes the Cu-polymer reaction and N+ passivation strengthens the surface bond due to nitride formation. Cu atom interacts with alumina slightly stronger at room temperature than at 80 K. Matching predictions to the measured size-dependent Cu-2p level shift reveals that the intra-atomic trapping energy of a core electron at the Cu 2p3/2-level is -931.0 eV and the bulk crystal bonding intensity to the 2p3/2 electron is -1.70 eV, which is beyond the scope of conventional approaches.
Keywords: Nanocrystalline; Copper; Surfaces and interfaces; Surface bond contraction; Electrical properties; Theory & modeling (electronic structure)
 
 
 

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