Binding Eenergy of Exciton in Quantum Dots with the Central-cell Correction Depending on the Dot Sizes
To Thi Thao, Nguyen Ai Viet
Abstract
The binding energy of exciton in quantum dots with a parabolic
confinement potential was calculated by variational methods beyond
the Kohn-Luttinger effective mass theory, when the central-cell
correction was taken into account.We have assumed that a short
range potential with two parameters for strength and range for
exciton, representing the center-cell effect also depends on dot
size. Our result is in good agreement with experiment.
confinement potential was calculated by variational methods beyond
the Kohn-Luttinger effective mass theory, when the central-cell
correction was taken into account.We have assumed that a short
range potential with two parameters for strength and range for
exciton, representing the center-cell effect also depends on dot
size. Our result is in good agreement with experiment.
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