Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1814874 | Physica B: Condensed Matter | 2008 | 5 Pages |
Abstract
Within the framework of effective-mass approximation, the binding energy of a hydrogenic donor impurity in a zinc-blende (ZB) InGaN/GaN cylindrical quantum dot (QD) is investigated using a variational procedure. Numerical results show that the donor binding energy is highly dependent on impurity position and QD size. The donor binding energy EbEb is largest when the impurity is located at the center of the QD. The donor binding energy is decreased when the dot height (radius) is increased.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Fengchun Jiang, Congxin Xia, Shuyi Wei,