2008
DOI: 10.1103/physrevb.77.205413
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Influence of the shape and size of a quantum wire on the trion binding energy

Abstract: The binding energy for charged excitons ͑X − and X + ͒ is calculated within the single-band effective mass approximation including effects due to strain for rectangular, triangular, and V-shaped quantum wires. Both X − and X + are found to be bound in rectangular InAs/ InP quantum wires and V-shaped GaAs/ Al 0.32 Ga 0.68 As quantum wires. We found an appreciable dependence of the trion binding energy on the size and shape of the quantum wire. We compare with available experimental data.

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Cited by 17 publications
(9 citation statements)
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“…The optical properties of the V‐groove GaAs/Ga 1− x Al x As quantum wires were investigated by observing photoluminescence (PL) and photoluminescence excitation (PLE) spectra, and the effect of lateral confinement on the valance‐band mixing was studied in 8, 33. Recently, Sidor et al 34 calculated the binding energy for charged excitons within the single‐band effective mass approximation including effects due to strain for V‐shaped quantum wires.…”
Section: Theorymentioning
confidence: 99%
“…The optical properties of the V‐groove GaAs/Ga 1− x Al x As quantum wires were investigated by observing photoluminescence (PL) and photoluminescence excitation (PLE) spectra, and the effect of lateral confinement on the valance‐band mixing was studied in 8, 33. Recently, Sidor et al 34 calculated the binding energy for charged excitons within the single‐band effective mass approximation including effects due to strain for V‐shaped quantum wires.…”
Section: Theorymentioning
confidence: 99%
“…Therefore, Eqn. (20) can also be regarded as an improvement over the EFA description, through the inclusion of H ignored in the 1 st -order perturbation theory. Using Eqn.…”
Section: Efa Estimation Of the Trion Energymentioning
confidence: 99%
“…Using Eqn. (20), we can make an order-of-magnitude estimation of the energy splitting. ) for R >> a, meaning that H ignored can be neglected in the limit where R >> a.…”
Section: Efa Estimation Of the Trion Energymentioning
confidence: 99%
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