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Electron-beam-stimulated processes at CdS surfaces observed by real-time atomic-resolution electron microscopy

Published online by Cambridge University Press:  31 January 2011

David J. Smith  and
Daniel J. Ehrlich
David J. Smith
Affiliation:
Center for Solid State Science and Department of Physics, Arizona State University, Tempe, Arizona 85287
Daniel J. Ehrlich
Affiliation:
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173
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Abstract

Electron-beam-induced changes in the structure of partially amorphous CdS surfaces have been observed directly by atomic-resolution electron microscopy. A sequence of atomic rearrangements leading to nucleation and growth of cubic CdS and hexagonal Cd has been documented. Inelastic electron collisions lead to crystallization of overlying amorphous CdS material whereas electron-stimulated desorption of S from the underlying CdS crystal results in precipitation of Cd crystallites at the crystalline/amorphous interface. From 100 to 500 keV the events are almost energy-independent.

Type
Articles
Information
Journal of Materials Research , Volume 1 , Issue 4 , August 1986 , pp. 560 - 563
Copyright
Copyright © Materials Research Society 1986

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