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Photoluminescence of Strained-Layer Quantum Well Structures Under High Hydrostatic Pressure

  • V. A. Wilkinson
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Part of the NATO ASI Series book series (NSSB, volume 286)

Abstract

The photoluminescence of quantum-well structures, under high hydrostatic pressure, has been studied. An argon-loaded miniature diamond-anvil cell, which readily generates pressures in the region 0 to 200kbar, has been employed for this purpose. Structures containing strained layers are currently of great interest and are concentrated on here. High pressure techniques for determining the heterojunction band line-ups, with spectroscopic accuracy, are described. Recent results on the InGaAs/AlGaAs and GaAsSb/GaAs strained systems are discussed.

The pressure coefficients of bulk semiconductors and more recently of low dimensional structures have been reported in the literature. There is now considerable evidence that compressively strained layers exhibit pressure coefficients which are lower than expected. The influence of higher-order elastic constants and strain-dependent deformation potentials have been considered but do not adequately describe the data. This behaviour therefore remains anomalous.

Keywords

Pressure Coefficient High Hydrostatic Pressure Indium Content Band Alignment Strained Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • V. A. Wilkinson
    • 1
  1. 1.Strained-Layer Structures Research GroupUniversity of SurreyGuildford, SurreyUK

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