Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1547483 | Physica E: Low-dimensional Systems and Nanostructures | 2007 | 5 Pages |
Abstract
Based on the framework of effective-mass approximation and variational approach, the luminescent properties are investigated theoretically in self-formed wurtzite GaN/AlxGa1âxN single-quantum dots (QDs). Considering the three-dimensional (3D) confinement of electron and hole pair and the strong built-in electric field effects, the exciton binding energy, the emission wavelength and the oscillator strength are calculated with and without the built-in electric field in detail. The results elucidate that the strong built-in electric field has a significant influence on luminescent properties of GaN/AlxGa1âxN QDs.
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Authors
X. Zhao, S.Y. Wei, C.X. Xia,