Defect characterization of GaAs/InP layers and MESFETs devices by admittance and photoluminescence spectroscopies

A. Ben Hamida; Georges E. Bremond; M. A. Garcia Perez; Gerard Guillot; Rozette Azoulay; Mourad Chertouk; A. Clei

doi:10.1117/12.162764

19 November 1993 Defect characterization of GaAs/InP layers and MESFETs devices by admittance and photoluminescence spectroscopies

A. Ben Hamida, Georges E. Bremond, M. A. Garcia Perez, Gerard Guillot, Rozette Azoulay, Mourad Chertouk, A. Clei

Author Affiliations +

Proceedings Volume 1985, Physical Concepts and Materials for Novel Optoelectronic Device Applications II; (1993) https://doi.org/10.1117/12.162764
Event: Physical Concepts of Materials for Novel Optoelectronic Device Applications II, 1993, Trieste, Italy

Abstract

GaAs layers as well as GaAs MESFET devices on InP are studied by means of DLTS and PL spectroscopies. We correlate the compensation observed on the Si-n-doped GaAs layers to the incorporation of Si that moves from a Si_Ga donor site to form a complex defect involving Si and As or Ga vacancies. A study of defects on MESFETs grown with various buffer layer thicknesses shows that the thicker this layer is the higher is the defect concentration. This behavior is assumed to be related to the compensation effect.

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A. Ben Hamida, Georges E. Bremond, M. A. Garcia Perez, Gerard Guillot, Rozette Azoulay, Mourad Chertouk, and A. Clei "Defect characterization of GaAs/InP layers and MESFETs devices by admittance and photoluminescence spectroscopies", Proc. SPIE 1985, Physical Concepts and Materials for Novel Optoelectronic Device Applications II, (19 November 1993); https://doi.org/10.1117/12.162764

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