Polarons in a quantum dot quantum well nanostructure under an electric field

机译：电场下量子点量子阱纳米结构中的极化子

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Polarons in a quantum dot quantum well nanostructure under an electric field are studied theoretically by using a variational approach. The interaction of an electron with both the longitudinal optical phonons and the surface optical phonons is taken into account in the framework of the dielectric continuum approximation. The calculations for a CdS/HgS quantum dot quantum well nanostructure embedded in water as an example were carried out. The numerical results show that the ground-state energy of the polaron increase monotonously with increasing core radius，but decrease with increasing the electric field intensity. The trapping energy of the polaron decreases when the electric field intensity and core radius increase, respectively. The size of quantum dot quantum well nanostructure gives a significant influence to Stark shifts of the polaron.

机译：理论上，采用变分方法研究了电场作用下量子点量子阱纳米结构中的极化子。在介电连续性近似的框架中考虑了电子与纵向光学声子和表面光学声子的相互作用。以嵌入水中的CdS / HgS量子点量子阱纳米结构为例进行了计算。数值结果表明，极化子的基态能量随核半径的增加而单调增加，而随电场强度的增加而减小。当电场强度和芯半径分别增大时，极化子的俘获能减小。量子点量子阱纳米结构的大小对极化子的Stark位移有重大影响。

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来源
《2010 International conference of international conference on combating land degradation in agricultral areas.》|2010年|p.798-808|共11页
会议地点 Xian City(CN);Xian City(CN);Xian City(CN)
作者
Y Wang; Y Xing; Z P Wang;
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作者单位

School of Physical Science and technology,Inner Mongolia University,Hohhot 010021,People's Republic of China;

School of Physical Science and technology,Inner Mongolia University,Hohhot 010021,People's Republic of China;

School of Physical Science and technology,Inner Mongolia University,Hohhot 010021,People's Republic of China;

Key Laboratory of Semiconductor Photovoltaic Technology at Universities of Inner Mongolia Autonomous Region,Hohhot 010021,People's Republic of China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类环境规划与环境管理;环境规划与环境管理;
关键词
polaron; Stark shifts; quantum dot; quantum well PACS numbers;

机译：极化子;斯塔克位移;量子点;量子阱PACS数;

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1. Polaron effects on the optical rectification in cylindrical quantum dots with electric and magnetic fields [J] . Guanghui Liu, Kangxian Guo, Jing-He Wu Superlattices and microstructures . 2013,第may期

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2. Influence of both electric and magnetic fields on the bound polaron in an anisotropic quantum dot [J] . Chen SH, Xiao JL International Journal of Modern Physics, B. Condensed Matter Physics, Statistical Physics, Applied Physics . 2008,第16期

机译：电场和磁场对各向异性量子点中束缚极化子的影响
3. Effect of electric and magnetic fields on the binding energy of the Coulomb impurity bound polaron in a quantum dot [J] . Vartanian AL, Vardanyan LA, Kazaryan EM Physica, E. Low-dimensional systems & nanostructures . 2008,第5期

机译：电场和磁场对量子点中库仑杂质结合的极化子的结合能的影响
4. Polarons in a quantum dot quantum well nanostructure under an electric field [C] . Y Wang, Y Xing, Z P Wang China international nanoscience and technology symposium . 2010

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5. Exploring Single Hole States in InAs/GaAs Quantum Dots and Quantum Dot Molecules under 2-D Electric Fields [D] . Ma, Xiangyu. 2018

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6. Dynamic behavior of nematic liquid crystal mixtures with quantum dots in electric fields [O] . Emil Petrescu, Cristina Cirtoaje, Octavian Danila 2018

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7. Quadra-Quantum Dots and Related Patterns of Quantum Dot Molecules: Basic Nanostructures for Quantum Dot Cellular Automata Application [O] . Somsak Panyakeow 2010

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8. Radiation Effects in Nanostructures: Comparison of Proton Irradiation Induced Changes on Quantum Dots and Quantum Wells [R] . Leon, R., Swift, G., Magness, B., 2000

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Polarons in a quantum dot quantum well nanostructure under an electric field

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