The energy levels of GaAs/AlGaAs quantum dots (QDs) are studied utilizing high pressure photoluminescence (PL), photoluminescence excitation (PLE), and single QD micro-PL measurements. It is found that the electron first excited state is situated 70 meV above the electron ground state, and the separation between the heavy hole ground state and its first excited state is found to be 20 meV. These values agree with effective-mass calculations. From the single QD micro-PL spectrum, the multi-electronic correlation energy is found to be of the order of 1 meV.

Yamagiwa, M., Minami, F., Sanguinetti, S., Kuroda, T., Koguchi, N. (2005). Electronic and multi-electronic structures in GaAs quantum dots. In Physics of Semiconductors, Pts A and B (pp.679-680). AMER INST PHYSICS [10.1063/1.1994288].

Electronic and multi-electronic structures in GaAs quantum dots

SANGUINETTI, STEFANO;
2005

Abstract

The energy levels of GaAs/AlGaAs quantum dots (QDs) are studied utilizing high pressure photoluminescence (PL), photoluminescence excitation (PLE), and single QD micro-PL measurements. It is found that the electron first excited state is situated 70 meV above the electron ground state, and the separation between the heavy hole ground state and its first excited state is found to be 20 meV. These values agree with effective-mass calculations. From the single QD micro-PL spectrum, the multi-electronic correlation energy is found to be of the order of 1 meV.
paper
quantum dots; III-V Semiconductors
English
PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27
2004
Menendez, J; VanDeWalle, CG
Physics of Semiconductors, Pts A and B
9780735402577
2005
772
772
679
680
none
Yamagiwa, M., Minami, F., Sanguinetti, S., Kuroda, T., Koguchi, N. (2005). Electronic and multi-electronic structures in GaAs quantum dots. In Physics of Semiconductors, Pts A and B (pp.679-680). AMER INST PHYSICS [10.1063/1.1994288].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/33509
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