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Band offsets of semiconductor heterostructures: a hybrid density functional study

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 نشر من قبل Amita Wadehra
 تاريخ النشر 2010
  مجال البحث فيزياء
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We demonstrate the accuracy of the hybrid functional HSE06 for computing band offsets of semiconductor alloy heterostructures. The highlight of this study is the computation of conduction band offsets with a reliability that has eluded standard density functional theory. A high-quality special quasirandom structure models an infinite random pseudobinary alloy for constructing heterostructures along the (001) growth direction. Our excellent results for a variety of heterostructures establish HSE06s relevance to band engineering of high-performance electrical and optoelectronic devices.



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