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- W2382210823 abstract "With the quick development of the semiconductor growth technology, people have produced kinds of quantum dots. Due to the novel optoelectronic properties and the transport characteristics of quantum dots, there will be a widely applied prospect for them. In recent years, the physical characteristic of a bound po-laron in a quantum dot has been of considerable interest. Many investigators studied the properties of the bound polaron in a quantum dot by means of various theoretical and experimental methods. Recently, the properties of bound polaron in quantum dot were studied by using a linear combination operator method by the presents. However, the properties of the excited state of the bound polaron in a quantum dot have not been investigated so far. In this paper, the properties of the excited state of the weak-coupling bound polaron in a quantum dot were studied by using a linear combination operator and unitary transformation method.The relations of the vibrational frequency of the weak coupling bound polaron in a quantum dot with the effective confinement length of the quantum dot and the Coulomb bound potential are derived. Relation of the first in-ternal excited state energy, the excitation energy and resonance frequency of the weak-coupling bound polaron in a quantum dot with effective confinement length of quantum dot, the electron-phonon coupling strength and the Coulomb bound potential are calculated. The numerical results show that the vibrational frequency, the first internal excited state energy, the excitation energy and the resonance frequency of the weak-coupling bound polaron in a quantum dot will increase strongly with decreasing the effective confinement length of the quantum dot and increase with increasing the Coulomb bound potential. The first internal excited state energy will increase with decreasing the electron-phonon coupling strength." @default.
- W2382210823 created "2016-06-24" @default.
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- W2382210823 date "2007-01-01" @default.
- W2382210823 modified "2023-09-24" @default.
- W2382210823 title "Properties of Internal Excited State of the Weak-coupling Bound Polaron in a Quantum Dot" @default.
- W2382210823 hasPublicationYear "2007" @default.
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