Cu-nanoclusters produced on AuCu-Alloys with an electrochemical scanning 
tunneling microscope

Maupai, S.; Dakkouri, A. S.; Stratmann, Martin; Schmuki, Patrik

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Conference Paper

Cu-nanoclusters produced on AuCu-Alloys with an electrochemical scanning tunneling microscope

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Maupai, S., Dakkouri, A. S., Stratmann, M., & Schmuki, P. (2002). Cu-nanoclusters produced on AuCu-Alloys with an electrochemical scanning tunneling microscope. In R. Singh, H. Hofmann, M. Senna, R. Partch, & M. Muhammed (Eds.), Nanoparticulate Materials (pp. 79-84).

Cite as: https://hdl.handle.net/21.11116/0000-0008-2E88-C

Abstract

Cu-nanoclusters can be produced in an electrochemical environment by
tip-induced metal deposition using an electrochemical scanning tunneling
microscope (EC-STM). These clusters, consisting of 100-1000 atoms only,
show a surprising stability against anodic oxidation. The clusters,
which are 2-3 atomic layers in height dissolve slowly when the applied
potential is increased step by step to 200 mV positive of the reversible
Nernst potential for ``normal{''} copper dissolution. The presented work
gives evidence that the unusual stability of the clusters could be a
consequence of interfacial alloying between the cluster and the
underlying substrate. In order to study these effects Cu-nanoclusters
have been produced on pure gold substrates and on carefully prepared
Au3Cu(111)-substrates. This work compares the results obtained on both
substrates.