| Original Articles |
|
|
|
|
Interband Optical Transitions due to Donor Bound Excitons in Wurtzite InGaN Strained Coupled Quantum Dots: Strong Built-in Electric Field Effects |
| CHI Yue-Meng;SHI Jun-Jie |
| State Key Laboratory for Mesoscopic Physics, and School of Physics, Peking University, Beijing 100871 |
|
| Cite this article: |
|
CHI Yue-Meng, SHI Jun-Jie 2006 Chin. Phys. Lett. 23 2206-2209 |
|
|
|
|
Abstract Considering the three-dimensional confinement of the electrons and holes and the strong built-in electric field (BEF) in the wurtzite InGaN strained coupled quantum dots (QDs), the positively charged donor bound exciton states and interband optical transitions are investigated theoretically by means of a variational method. Our calculations indicate that the emission wavelengths sensitively depend on the donor position, the strong BEF, and the structure parameters of the QD system.
|
| Keywords:
73.21.La
71.35.-y
77.65.Ly
77.84.Bw
|
|
|
Published: 01 August 2006
|
|
| PACS: |
73.21.La
|
(Quantum dots)
|
| |
71.35.-y
|
(Excitons and related phenomena)
|
| |
77.65.Ly
|
(Strain-induced piezoelectric fields)
|
| |
77.84.Bw
|
(Elements, oxides, nitrides, borides, carbides, chalcogenides, etc.)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
