کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9586197 1505939 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Coulomb-interaction driven anomaly in the Stark effect for an exciton in vertically coupled quantum dots
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Coulomb-interaction driven anomaly in the Stark effect for an exciton in vertically coupled quantum dots
چکیده انگلیسی
The effect of the electric field on an exciton confined in a pair of vertically coupled quantum dots is studied. We use a single-band approximation and a parabolic model potential. As a result of these idealizations, we obtain a numerically solvable model, which is used to describe the influence of the electron-hole interaction on the Stark effect for the lowest-energy photoluminescence lines. We show that for intermediate tunnel coupling between the dots this interaction leads to an anomalous Stark effect with an essential deviation of the recombination energy from the usual quadratic dependence on the electric field.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 112, Issues 1–4, April 2005, Pages 122-126
نویسندگان
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