Please wait a minute...
Chinese Physics, 2006, Vol. 15(1): 203-208    DOI: 10.1088/1009-1963/15/1/033
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Binding energies of an exciton in a Gaussian potential quantum dot

Xie Wen-Fang (解文方)
Department of Physics, Guangzhou University, Guangzhou 510405,China
Abstract  In this paper, an exciton trapped by a Gaussian confining potential quantum dot has been investigated. Calculations are made by using the method of numerical diagonalization of Hamiltonian in the effective-mass approximation. The dependences of binding energies of the ground state and the first excited state on the size of the confining potential and the strength of the magnetic field are analysed explicitly.
Keywords:  quantum dot      exciton  
Accepted manuscript online: 
PACS:  71.35.-y (Excitons and related phenomena)  
  73.21.La (Quantum dots)  
  71.15.Nc (Total energy and cohesive energy calculations)  
  71.18.+y (Fermi surface: calculations and measurements; effective mass, g factor)  
Fund: Project supported by the Natural Science Foundation of Guangdong Province, China (Grant No 04009519) and the National Natural Science Foundation of China (Grant No 10475021).

Cite this article: 

Xie Wen-Fang (解文方) Binding energies of an exciton in a Gaussian potential quantum dot 2006 Chinese Physics 15 203

[1] Adaptive genetic algorithm-based design of gamma-graphyne nanoribbon incorporating diamond-shaped segment with high thermoelectric conversion efficiency
Jingyuan Lu(陆静远), Chunfeng Cui(崔春凤), Tao Ouyang(欧阳滔), Jin Li(李金), Chaoyu He(何朝宇), Chao Tang(唐超), and Jianxin Zhong(钟建新). Chin. Phys. B, 2023, 32(4): 048401.
[2] Electron beam pumping improves the conversion efficiency of low-frequency photons radiated by perovskite quantum dots
Peng Du(杜鹏), Yining Mu(母一宁), Hang Ren(任航), Idelfonso Tafur Monroy, Yan-Zheng Li(李彦正), Hai-Bo Fan(樊海波), Shuai Wang(王帅), Makram Ibrahim, and Dong Liang(梁栋). Chin. Phys. B, 2023, 32(4): 048704.
[3] Thermoelectric signature of Majorana zero modes in a T-typed double-quantum-dot structure
Cong Wang(王聪) and Xiao-Qi Wang(王晓琦). Chin. Phys. B, 2023, 32(3): 037304.
[4] High-fidelity universal quantum gates for hybrid systems via the practical photon scattering
Jun-Wen Luo(罗竣文) and Guan-Yu Wang(王冠玉). Chin. Phys. B, 2023, 32(3): 030303.
[5] Electrical manipulation of a hole ‘spin’-orbit qubit in nanowire quantum dot: The nontrivial magnetic field effects
Rui Li(李睿) and Hang Zhang(张航). Chin. Phys. B, 2023, 32(3): 030308.
[6] Nonlinear optical rectification of GaAs/Ga1-xAlxAs quantum dots with Hulthén plus Hellmann confining potential
Yi-Ming Duan(段一名) and Xue-Chao Li(李学超). Chin. Phys. B, 2023, 32(1): 017303.
[7] Ion migration in metal halide perovskite QLEDs and its inhibition
Yuhui Dong(董宇辉), Danni Yan(严丹妮), Shuai Yang(杨帅), Naiwei Wei(魏乃炜),Yousheng Zou(邹友生), and Haibo Zeng(曾海波). Chin. Phys. B, 2023, 32(1): 018507.
[8] Steering quantum nonlocalities of quantum dot system suffering from decoherence
Huan Yang(杨欢), Ling-Ling Xing(邢玲玲), Zhi-Yong Ding(丁智勇), Gang Zhang(张刚), and Liu Ye(叶柳). Chin. Phys. B, 2022, 31(9): 090302.
[9] Large Seebeck coefficient resulting from chiral interactions in triangular triple quantum dots
Yi-Ming Liu(刘一铭) and Jian-Hua Wei(魏建华). Chin. Phys. B, 2022, 31(9): 097201.
[10] Optical second-harmonic generation of Janus MoSSe monolayer
Ce Bian(边策), Jianwei Shi(史建伟), Xinfeng Liu(刘新风), Yang Yang(杨洋), Haitao Yang(杨海涛), and Hongjun Gao(高鸿钧). Chin. Phys. B, 2022, 31(9): 097304.
[11] Dynamic transport characteristics of side-coupled double-quantum-impurity systems
Yi-Jie Wang(王一杰) and Jian-Hua Wei(魏建华). Chin. Phys. B, 2022, 31(9): 097305.
[12] High-quality CdS quantum dots sensitized ZnO nanotube array films for superior photoelectrochemical performance
Qian-Qian Gong(宫倩倩), Yun-Long Zhao(赵云龙), Qi Zhang(张奇), Chun-Yong Hu(胡春永), Teng-Fei Liu(刘腾飞), Hai-Feng Zhang(张海峰), Guang-Chao Yin(尹广超), and Mei-Ling Sun(孙美玲). Chin. Phys. B, 2022, 31(9): 098103.
[13] Neutron activation cross section data library
Xiao-Long Huang(黄小龙), Zhi-Gang Ge(葛智刚), Yong-Li Jin(金永利), Hai-Cheng Wu(吴海成), Xi Tao(陶曦),Ji-Min Wang(王记民), Li-Le Liu(刘丽乐), Yue Zhang(张玥), and Xiao-Fei Wu(吴小飞). Chin. Phys. B, 2022, 31(6): 060102.
[14] Modeling and numerical simulation of electrical and optical characteristics of a quantum dot light-emitting diode based on the hopping mobility model: Influence of quantum dot concentration
Pezhman Sheykholeslami-Nasab, Mahdi Davoudi-Darareh, and Mohammad Hassan Yousefi. Chin. Phys. B, 2022, 31(6): 068504.
[15] Chiral splitting of Kondo peak in triangular triple quantum dot
Yi-Ming Liu(刘一铭), Yuan-Dong Wang(王援东), and Jian-Hua Wei(魏建华). Chin. Phys. B, 2022, 31(5): 057201.
No Suggested Reading articles found!