کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1788303 1023465 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
GW calculation of O-vacancy and interactions between native point defects in O-deficient ZnO
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
GW calculation of O-vacancy and interactions between native point defects in O-deficient ZnO
چکیده انگلیسی

We investigate the role of the O-vacancy in ZnO. The vacancy is well-known to be rich in ZnO and the origin of the natural n-type conductivity. The electronic structure of the O-vacancy examined by the accurate GW calculations indicates that it is a deep donor. By considering the interactions between the O-vacancy and the other native point defects in O-deficient ZnO through density-functional theory calculations, the presence of O-vacancy induces the formation of Zn-interstitial which is a shallow donor. A quantum mechanical attractive interaction between the deep O-vacancy donor and the shallow Zn-interstitial donor, which comes from the electronic orbital hybridization, is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 11, Issue 3, Supplement, May 2011, Pages S288–S291
نویسندگان
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