کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1546256 997611 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Built-in electric field effect on the hydrogenic donor impurity in wurtzite InGaN quantum dot
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Built-in electric field effect on the hydrogenic donor impurity in wurtzite InGaN quantum dot
چکیده انگلیسی

The donor binding energy of the hydrogenic impurity is calculated as functions of the impurity position and structural parameters of wurtzite (WZ) InGaN/GaN quantum dot (QD). Numerical results show that the strong built-in electric field induces an asymmetrical distribution of the donor binding energy with respect to the center of the QD. When the impurity is located at the right boundary of the WZ InGaN/GaN QD, the donor binding energy is insensitive to the dot height, and it is largest when In composition x=0.3x=0.3 for different WZ InGaN/GaN QD. Realistic cases, including the impurity in the QD and the surrounding barriers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 40, Issue 8, June 2008, Pages 2714–2719
نویسندگان
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