Journal of Electronic Materials

, Volume 39, Issue 7, pp 852–856

Radiation Damage in Type II Superlattice Infrared Detectors

  • E.M. Jackson
  • E.H. Aifer
  • C.L. Canedy
  • J.A. Nolde
  • C.D. Cress
  • B.D. Weaver
  • I. Vurgaftman
  • J.H. Warner
  • J.R. Meyer
  • J.G. Tischler
  • S.A. Shaw
  • C.R. Dedianous
Article

DOI: 10.1007/s11664-010-1227-z

Cite this article as:
Jackson, E., Aifer, E., Canedy, C. et al. Journal of Elec Materi (2010) 39: 852. doi:10.1007/s11664-010-1227-z

Abstract

The effects of 2 MeV proton irradiation on a set of four long-wave infrared type II superlattice photodiodes with various structures were studied. Changes were monitored in operating bias, quantum efficiency (QE), and dark current. Shifts in operating bias indicate that irradiation causes the superlattices to become more p-type, and decreases in QE are found to be consistent with a reduction in carrier lifetime. Leakage currents remain lower in graded-gap diodes at all fluences.

Keywords

Type II superlatticeinfrareddetectorradiation

Copyright information

© Naval Research Laboratory, Department of the Navy 2010

Authors and Affiliations

  • E.M. Jackson
    • 1
  • E.H. Aifer
    • 1
  • C.L. Canedy
    • 1
  • J.A. Nolde
    • 1
  • C.D. Cress
    • 1
  • B.D. Weaver
    • 1
  • I. Vurgaftman
    • 1
  • J.H. Warner
    • 1
  • J.R. Meyer
    • 1
  • J.G. Tischler
    • 1
  • S.A. Shaw
    • 1
  • C.R. Dedianous
    • 1
  1. 1.Naval Research LaboratoryWashingtonUSA