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Control of Point Defects in Semiconductors
Published online by Cambridge University Press: 16 February 2011
Abstract
The prospects for localised point defect control within II-VI compound semiconductors are considered with reference to doping, thermal annealing, electron and ion beam irradiation and localised strain. Interstitials and vacancies generated within electron beam irradiated II-VI compounds interact and coalesce in a TEM foil to form voids decorated by metallic precipitates and the processes of CdTe chemical decomposition are examined. Ion beam and electron beam irradiated material show clear differences in behaviour following annealing of doped and un-doped CdTe. Controlled directional climb of dislocations within electron beam irradiated ZnSe is demonstrated. In view of the differential diffusion of interstitials and vacancies, the prospect of localised semiconductor type conversion is considered.
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- Copyright © Materials Research Society 1995
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