Proton radiation effects on the photoluminescence of infrared InAs/InAsSb superlattices

Elizabeth H. Steenbergen, Jeremy A. Massengale, Vincent M. Cowan, Zhiyuan Lin, Yong-Hang Zhang, Christian P. Morath

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Infrared detector arrays operating in space must be able to withstand defect-inducing proton radiation without performance degradation. Therefore, it is imperative that the proton-radiation hardness of infrared detector materials be investigated. Photoluminescence (PL) is sensitive to defects in materials, and thus can be used to quantify the effects of proton-radiation-induced defects. The excitation intensity-dependent PL was used to examine of a set of InAs/InAsSb superlattices before and after 63-MeV-proton irradiation. A proton dose of 100 kRad(Si) was applied to a different piece of each superlattice sample. The low-temperature excitation intensity dependent PL results reveal minimal increases in the carrier concentration, non-radiative recombination, and the PL full-width half-maximum. These results suggest that InAs/InAsSb superlattices are quite tolerant of proton irradiation and may be suitable for space infrared detector arrays.

Original languageEnglish (US)
Title of host publicationNanophotonics and Macrophotonics for Space Environments VII
DOIs
StatePublished - Nov 29 2013
Event7th Nanophotonics and Macrophotonics for Space Environments Conference, NMSE 2013 - San Diego, CA, United States
Duration: Aug 25 2013Aug 27 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8876
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

Other7th Nanophotonics and Macrophotonics for Space Environments Conference, NMSE 2013
CountryUnited States
CitySan Diego, CA
Period8/25/138/27/13

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Keywords

  • Excitation Intensity-Dependence
  • Infrared Superlattice
  • Photoluminescence
  • Proton Radiation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Steenbergen, E. H., Massengale, J. A., Cowan, V. M., Lin, Z., Zhang, Y-H., & Morath, C. P. (2013). Proton radiation effects on the photoluminescence of infrared InAs/InAsSb superlattices. In Nanophotonics and Macrophotonics for Space Environments VII [887609] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8876). https://doi.org/10.1117/12.2026872