Voids in thin silver films
- 1 February 1980
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 41 (2) , 209-217
- https://doi.org/10.1080/01418618008236136
Abstract
A high density (1010−1012 cm−2) of small voids (< 15 Å) has been observed in as-deposited thin silver films prepared by cathodic sputtering using high-resolution electron microscopy. The annealing behaviour of these voids has been studied as a function of annealing time and thickness of the films. It has been observed that the size of the voids and the crystallites grow as a result of annealing and, after a certain stage of annealing, a large number of voids are accumulated at the grain boundaries thus inhibiting the grain coarsening by high-angle grain boundary migration. Vacancies trapped in the films and their migration offer a suitable mechanism of void growth observed in the present case.Keywords
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