Photo hall measurements of band-tail absorption and recombination times in indium antimonide

H. A. Mackenzie, G. R. Allan, J. J. Hunter, D. C. Hutchings, B. S. Wherrett

Research output: Contribution to journalArticle

Abstract

Photo Hall measurements are reported for a n-type InSb sample at 77 K. A bulk recombination time of 350 ns and an effective surface recombination time of 20 ns, corresponding to a surface recombination velocity of 2.8 X 105 cm s-1, has been estimated from analysis of the frequency dependence of the photocarrier generation. The measurements yield interband absorption coefficients in the band-tail which are systematically lower than the previous optical measurements, being up to an order of magnitude lower at 100 cm-1 below the band edge. The form of the band-tail is qualitatively described in terms of the convolution of an exponential edge and an acceptor impurity resonance. © 1987.

Original languageEnglish
Pages (from-to)73-77
Number of pages5
JournalOptics Communications
Volume63
Issue number2
Publication statusPublished - 15 Jul 1987

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indium
optical measurement
convolution integrals
absorptivity
impurities

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Mackenzie, H. A., Allan, G. R., Hunter, J. J., Hutchings, D. C., & Wherrett, B. S. (1987). Photo hall measurements of band-tail absorption and recombination times in indium antimonide. Optics Communications, 63(2), 73-77.
Mackenzie, H. A. ; Allan, G. R. ; Hunter, J. J. ; Hutchings, D. C. ; Wherrett, B. S. / Photo hall measurements of band-tail absorption and recombination times in indium antimonide. In: Optics Communications. 1987 ; Vol. 63, No. 2. pp. 73-77.
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Mackenzie, HA, Allan, GR, Hunter, JJ, Hutchings, DC & Wherrett, BS 1987, 'Photo hall measurements of band-tail absorption and recombination times in indium antimonide', Optics Communications, vol. 63, no. 2, pp. 73-77.

Photo hall measurements of band-tail absorption and recombination times in indium antimonide. / Mackenzie, H. A.; Allan, G. R.; Hunter, J. J.; Hutchings, D. C.; Wherrett, B. S.

In: Optics Communications, Vol. 63, No. 2, 15.07.1987, p. 73-77.

Research output: Contribution to journalArticle

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Mackenzie HA, Allan GR, Hunter JJ, Hutchings DC, Wherrett BS. Photo hall measurements of band-tail absorption and recombination times in indium antimonide. Optics Communications. 1987 Jul 15;63(2):73-77.