Acceptor-related photoluminescence study of GaAs (Ga,Al)As quantum-well wires

Luiz O. Oliveira; A. Latge; Nelson Porras-Montenegro

doi:10.1117/12.137590

3 September 1992 Acceptor-related photoluminescence study of GaAs (Ga,Al)As quantum-well wires

Luiz O. Oliveira, A. Latge, Nelson Porras-Montenegro

Proceedings Volume 1675, Quantum Well and Superlattice Physics IV; (1992) https://doi.org/10.1117/12.137590
Event: Semiconductors '92, 1992, Somerset, NJ, United States

Abstract

Acceptor-related photoluminescence spectra are calculated for both homogeneous and on- center spike-doped distribution of acceptors in a cylindrical GaAs-(Ga,Al)As quantum-well wire. Results are dependent on the temperature, on the choice of the quasi-Fermi energy level of the conduction-subband electron gas and on the distribution of acceptors in the wire. The photoluminescence spectra corresponding to a on-center spike-doped Gaussian distribution show a peak for energies associated with on-center impurity states, as it is expected, whereas for a homogeneous distribution of acceptors in the well we essentially found an edge in the spectra associated to transitions involving on-center acceptors and a peaked structure related to the onset of transitions from the conduction subband to on-edge acceptors.

Citation Download Citation

Luiz O. Oliveira, A. Latge, and Nelson Porras-Montenegro "Acceptor-related photoluminescence study of GaAs (Ga,Al)As quantum-well wires", Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); https://doi.org/10.1117/12.137590

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