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Confinement of an exciton in a quantum dot: effect of modified Kratzer potential

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Abstract

In the present work, we have considered an exciton confined in a quantum dot with modified Kratzer potential. We have studied the electronic and optical properties of the system by using the numerical diagonalization of the Hamiltonian matrix. For this purpose, we have calculated the binding energies of the ground and first excited states as functions of the quantum dot size. We have also computed the linear, nonlinear and total absorption coefficients between ground and first excited states. It is found that the quantum dot radius has an important role on the binding energy and absorption coefficient.

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Authors and Affiliations

  1. Department of Physics, College of Sciences, Yasouj University, Yasouj, 75914-353, Iran

    R. Khordad

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  1. R. Khordad
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Khordad, R. Confinement of an exciton in a quantum dot: effect of modified Kratzer potential. Indian J Phys 87, 623–628 (2013). https://doi.org/10.1007/s12648-013-0281-9

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  • DOI: https://doi.org/10.1007/s12648-013-0281-9

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