| Interband Optical Transitions due to Donor Bound Excitons in Wurtzite InGaN Strained Coupled Quantum Dots： Strong Built-in Electric Field Effects |
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| 引用本文： | 池月萌,史俊杰.Interband Optical Transitions due to Donor Bound Excitons in Wurtzite InGaN Strained Coupled Quantum Dots： Strong Built-in Electric Field Effects[J].中国物理快报,2006,23(8):2206-2209. |
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| 作者姓名： | 池月萌 史俊杰 |
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| 作者单位： | State Key Laboratory for Mesoscopic Physics, and School of Physics, Peking University, Beijing 100871 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 60276004 and 60390073. |
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| 摘 要： | 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.
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| 关 键 词： | 间带 光学跃迁 纤维锌矿 量子点 电场效应 |
| 收稿时间： | 2006-05-09 |
| 修稿时间： | 2006-05-09 |
Interband Optical Transitions due to Donor Bound Excitons in Wurtzite InGaN Strained Coupled Quantum Dots: Strong Built-in Electric Field Effects |
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| CHI Yue-Meng,SHI Jun-Jie.Interband Optical Transitions due to Donor Bound Excitons in Wurtzite InGaN Strained Coupled Quantum Dots: Strong Built-in Electric Field Effects[J].Chinese Physics Letters,2006,23(8):2206-2209. |
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| Authors: | CHI Yue-Meng SHI Jun-Jie |
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| Institution: | State Key Laboratory for Mesoscopic Physics, and School of Physics, Peking University, Beijing 100871 |
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| 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. |
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| Keywords: | 73 21 La 71 35 -y 77 65 Ly 77 84 Bw |
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