Effect of the alpha-particle irradiation on the photoluminescence and Raman spectroscopy from GaAs/Al0.3Ga0.7As quantum wells and coupling coefficients for the light and heavy holes

Herbert W. Kunert

doi:10.1117/12.425419

17 April 2001 Effect of the alpha-particle irradiation on the photoluminescence and Raman spectroscopy from GaAs/Al_0.3Ga_0.7As quantum wells and coupling coefficients for the light and heavy holes

Herbert W. Kunert

Author Affiliations +

Proceedings Volume 4413, International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology; (2001) https://doi.org/10.1117/12.425419
Event: International Conference on Solid State Crystals 2000, 2000, Zakopane, Poland

Abstract

The epitaxial grown GaAs quantum wells (Qws) (with the width L₁=2.5nm and L₂=15nm) were subjected to alpha particle irradiation at doses (7.8*10¹²-3.4*10¹³)cm^-2. The response of the Qws was studied by means of the low temperature photo luminescence (PL) and inelastic light spectroscopy. The damage accumulation leads to a shift of the quasi particle energy level towards higher energy and to a decrease of the LO₁ and LO₂ modes and to an increase of the TO₂ frequency mode of the Al_0.3Ga_0.7As slabs.

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Herbert W. Kunert "Effect of the alpha-particle irradiation on the photoluminescence and Raman spectroscopy from GaAs/Al_0.3Ga_0.7As quantum wells and coupling coefficients for the light and heavy holes", Proc. SPIE 4413, International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology, (17 April 2001); https://doi.org/10.1117/12.425419

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