✦ LIBER ✦

Hydrogenic impurity in zinc-blende GaN/AlGaN quantum dot

✍ Scribed by Congxin Xia; Fengchun Jiang; Shuyi Wei; Xu Zhao

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 142 KB
Volume: 38
Category: Article
ISSN: 0026-2692
DOI: 10.1016/j.mejo.2007.06.003

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✦ Synopsis

Within the framework of effective-mass approximation, we have calculated the binding energy of a hydrogenic donor impurity in a zinc-blende (ZB) GaN/AlGaN cylindrical quantum dot (QD) using a variational procedure. It is found that the donor binding energy is highly dependent on the impurity position and QD size. The donor binding energy E b is largest when the impurity is located at the center of the QD. The donor binding energy is decreased when the QD height (radius) is increased.

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