The influence of nitrogen and antimony on the optical quality of InNAs(Sb) alloys

M. Latkowska, M. Baranowski, W. M. Linhart, F. Janiaka, J. Misiewicz, N. Segercrantz, F. Tuomisto, Q. Zhuang, A. Krier, R. Kudrawiec

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)

Abstract

In this work we present detailed studies of the influence of nitrogen and antimony on the optical quality of InNAs(Sb) alloys. We employed photoluminescence, photoreflectance and positron annihilation spectroscopy to reveal the role of antimony and nitrogen on the improvement/degradation of the optical qualities of InNAs(Sb) alloys. A series of 1 μm-thick InNAs(Sb) layers with different nitrogen and antimony concentrations were grown by molecular beam epitaxy. The results of these investigations show that Sb atoms serve as a surfactant which effectively improves the optical quality of InNAsSb alloys. The influence of nitrogen on the optical quality however is not the same as to what has been reported for other dilute nitrides. We observed an improvement of the optical quality for some nitrogen contents. These issues are comprehensively examined and explained.

Original languageEnglish
Article number115105
Pages (from-to)1-7
JournalJournal of Physics D: Applied Physics
Volume49
Issue number11
DOIs
Publication statusPublished - 11 Feb 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • dilute nitrides
  • InAs
  • InNAs
  • InNAsSb
  • mid infrared
  • photoluminescence
  • positron annihilation spectroscopy

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