| HgS/CdS量子线中电子与声子的相互作用 |
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| 引用本文： | 张翠玲,林瑞,刘启能.HgS/CdS量子线中电子与声子的相互作用[J].西南农业大学学报,2011,33(3). |
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| 作者姓名： | 张翠玲 林瑞 刘启能 |
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| 作者单位： | 重庆工商大学计算机科学与信息工程学院; |
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| 基金项目： | 重庆市教育委员会科学技术研究资助项目(KJ080720); 重庆工商大学青年科学基金资助项目(0852013) |
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| 摘 要： | 在有限深势阱模型下,求出了考虑到电子-声子相互作用情况下量子线电子基态能、概率分布和禁带宽度,以HgS/CdS量子线为例,研究了电子-声子相互作用对它们的影响.结果表明:电子-声子相互作用会降低电子基态能,在对基态能的影响中以电子与界面光学支声子相互作用的影响最大,而与界面声学支声子相互作用影响最小;电子-声子相互作用的影响和电子由势阱透入有限高势垒的概率以及禁带宽度均随量子导线半径R的减小而增大;电子-声子相互作用不改变禁带宽度随R的变化趋势,仅使其数值减小.
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| 关 键 词： | 电子-声子相互作用 HgS/Cds量子线 电子和空穴 基态能 禁带宽度 |
Electron and Phonon Interaction in Cylindrical HgS/CdS Quantum Wires System |
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| ZHANG Cui-ling,LIN Rui,LIU Qi-neng Computer Science , Information Engineering College,Chongqing Technology , Business University,Chongqing ,Chin.Electron and Phonon Interaction in Cylindrical HgS/CdS Quantum Wires System[J].Journal of Southwest Agricultural University,2011,33(3). |
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| Authors: | ZHANG Cui-ling LIN Rui LIU Qi-neng Computer Science Information Engineering College Chongqing Technology Business University Chongqing Chin |
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| Institution: | ZHANG Cui-ling,LIN Rui,LIU Qi-neng Computer Science and Information Engineering College,Chongqing Technology and Business University,Chongqing 400067,Chin |
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| Abstract: | A model of cylindrical quantum wires system with one core well,one shell barrier and finite deep potential well is founded.The body phonons,interface phonons,and their couplings with electron are investigated with the help of Green's function.The equations of electronic energy spectrum and wave function are obtained considering and neglecting the electron-interface interaction,and the correction of the electron ground level,electronic distribution and band gap to the well radius are given.Numerical calculat... |
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| Keywords: | electron-phonon interaction cylindrical HgS/CdS quantum wires system electron and hole band gap electron ground level |
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