1992
DOI: 10.1063/1.107664
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Study of electron traps in semi-insulating gallium-arsenide buffer layers for the suppression of backgating by the zero-bias thermally stimulated current technique

Abstract: Electron traps in undoped-GaAs epitaxial layers grown at low temperatures (<300 °C) by molecular beam epitaxy were studied by the zero-bias thermally stimulated current technique. Four traps T1-4 were detected in as-grown samples. It was also found that all the traps detected can be annealed out except the T1 trap. However, the buffer layer, with or without annealing, was found to be an effective remedy for backgating in high electron mobility transistors, indicating that the T1 trap may have a much mor… Show more

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Cited by 11 publications
(1 citation statement)
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“…Charge relaxation during the heating scan of the ZB-TSC can be discussed [9] in terms of motion of the zero electric-field planes (ZFP) along the sample depth. Details on the ZB-TSC technique applied on different semiconductor materials are reported in [10,11].…”
Section: Experimental Techniquesmentioning
confidence: 99%
“…Charge relaxation during the heating scan of the ZB-TSC can be discussed [9] in terms of motion of the zero electric-field planes (ZFP) along the sample depth. Details on the ZB-TSC technique applied on different semiconductor materials are reported in [10,11].…”
Section: Experimental Techniquesmentioning
confidence: 99%