Lookup NU author(s): Professor Patrick Briddon
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The dislocation related photoluminescence in silicon was investigated. The stability and electrical activity, bound to 90° and 30° partial dislocations, was investigated. A fully self-consistent density functional method (AIMPRO) was used to obtain the binding energy of four interstitials in I4. The AIMPRO method gave optical transitions around 0.8-0.9 eV for isolated I3 and I4 defects which is in agreement with the W and X transitions. Transmission electron microscopy images showed that the mobility of dislocations was obstructed by interstitial aggregates.
Author(s): Blumenau AT, Jones R, Oberg S, Briddon PR, Frauenheim T
Publication type: Article
Publication status: Published
Journal: Physical Review Letters
ISSN (print): 0031-9007
ISSN (electronic): 1079-7114
Publisher: American Physical Society
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