| 闪锌矿InGaN耦合量子点中的激子态 |
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| 引用本文： | 蒋逢春,陈靖,吴杰.闪锌矿InGaN耦合量子点中的激子态[J].河南师范大学学报(自然科学版),2011,39(5):106-109. |
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| 作者姓名： | 蒋逢春 陈靖 吴杰 |
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| 作者单位： | 郑州轻工业学院技术物理系,郑州,450002 |
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| 基金项目： | 郑州轻工业学院重大预研基金项目(2009XYYJJ006); 河南省科技厅基础与前沿技术研究(102300410108); 河南省教育厅自然科学研究计划项目(2011A140028) |
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| 摘 要： | 在有效质量近似下,用变分法研究了受限于闪锌矿InGaN耦合量子点中的激子态.数值结果显示了量子点的结构参数和铟含量对闪锌矿InGaN耦合量子点中的激子态有明显的影响.激子结合能随着垒层厚度的增加有个最小值,而随着点高和半径的增加单调地降低.
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| 关 键 词： | 激子 耦合量子点 InGaN |
Exciton States in Zince-blende InGaN Coupled Quantum Dots |
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| JIANG Feng-chun,CHEN Jing,WU Jie.Exciton States in Zince-blende InGaN Coupled Quantum Dots[J].Journal of Henan Normal University(Natural Science),2011,39(5):106-109. |
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| Authors: | JIANG Feng-chun CHEN Jing WU Jie |
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| Institution: | JIANG Feng-chun,CHEN Jing,WU Jie (Department of Physics,Zhengzhou University of Light Industry,Zhengzhou 450002,China) |
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| Abstract: | Based on the effective-mass approximation,the exciton states are investigated in zinc-blende InGaN/GaN coupled quantum dots by means of a variational method.Numerical results show that the exciton binding energy is highly dependent on the coupled quantum dots structure parameters.The exciton binding energy has a minmum value increasing the barrier width,however,it decreases when the dot height and radius are increased. |
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| Keywords: | exciton coupled quantum dots InGaN |
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