Electron microscopy characterization of epitaxial growth of Ag deposited on MgO microcubes

Jingyue Liu, M. Pan, G. E. Spinnler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

The crystalline structure, the morphology and the chemistry of small Ag particles vacuum-deposited on preheated MgO microcubes were characterized by in situ and ex situ electron microcopy and surface analysis techniques. Observations were made of the nucleation and growth of Ag clusters on MgO surfaces and along surface steps. It is found that Ag particles deposited onto clean MgO crystals have an epitaxial orientation relationship of (100)Ag∥(100)MgO with [100]Ag∥[100]MgO. Prior to air exposure Ag particles are stable under the electron beam but they become unstable upon exposure to air. During electron irradiation on air-exposed samples terraces are formed on the surfaces of MgO cubes, preferentially near Ag particles and at their interfaces with the substrate. The stability of vacuum-deposited Ag particles and the growth of the terraces on MgO microcubes seem to depend on air exposure of the sample.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium Proceedings
Place of PublicationPittsburgh, PA, United States
PublisherPubl by Materials Research Society
Pages127-132
Number of pages6
Volume295
ISBN (Print)1558991905
Publication statusPublished - 1993
EventSymposium on Atomic-scale Imaging of Surfaces and Interfaces -
Duration: Nov 30 1992Dec 2 1992

Other

OtherSymposium on Atomic-scale Imaging of Surfaces and Interfaces
Period11/30/9212/2/92

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Liu, J., Pan, M., & Spinnler, G. E. (1993). Electron microscopy characterization of epitaxial growth of Ag deposited on MgO microcubes. In Materials Research Society Symposium Proceedings (Vol. 295, pp. 127-132). Pittsburgh, PA, United States: Publ by Materials Research Society.