Observation of cathodoluminescence at single dislocations by STEM
- 1 April 1980
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 41 (4) , 589-600
- https://doi.org/10.1080/01418618008239335
Abstract
A cathodoluminescence detector on a V.G. Microscopes HB5 STEM has been used to form high-resolution cathodoluminescence images of single dislocations in natural type-IIb diamond. The cartridge and light-collection systems are described and stray-electron effects are discussed. The cathodoluminescence and transmitted-electron signals are obtained simultaneously, which allows the direct correlation of the cathodoluminescence image with the transmitted-electron image. Almost all the luminescence was emitted from dislocations, but not all dislocations were luminescent. Examples of both 60° and screw dislocations were found to be luminescent, and both types were also seen to be non-luminescent.Keywords
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