Effect of well width on the wavefunction spillover in GaAs/AlGaAs quantum wells

Authors

  • Raisa Mustapha National Institute of Physics, University of the Philippines Diliman
  • Alexander De Los Reyes National Institute of Physics, University of the Philippines Diliman
  • John Daniel Vasquez Materials Science and Engineering Program, University of the Philippines Diliman
  • Miguel Bacaoco National Institute of Physics, University of the Philippines Diliman
  • Arnel Salvador National Institute of Physics, University of the Philippines Diliman
  • Armando Somintac National Institute of Physics, University of the Philippines Diliman
  • Elmer Estacio National Institute of Physics, University of the Philippines Diliman

Abstract

Wavefunction spillover in a GaAs/AlGaAs quantum well (MQW) was investigated by varying its well width. A numerical simulation of the solution to the Schrödinger equation for a finite potential well under the effective mass approximation showed that the wavefunctions are significantly spilled out for narrow quantum wells (≤50Ã…). Photoluminescence (PL) and photoreflectance (PR) measurements were then performed on 50Ã… and 90Ã… quantum wells to investigate experimental manifestation of wavefunction spillover. It was found that wavefunction spillover manifests in the PR line shape.

SPP 2018 Proceedings cover

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Published

2018-05-31

Issue

2018: Proceedings of the 36th Samahang Pisika ng Pilipinas Physics Conference

Section

Poster Session A (Materials Science, Instrumentation, and Photonics)

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How to Cite

[1]
“Effect of well width on the wavefunction spillover in GaAs/AlGaAs quantum wells”, Proc. SPP, vol. 36, no. 1, p. SPP-2018-PA-49, May 2018, Accessed: Mar. 28, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2018-PA-49