Positron annihilation at ionized acceptors and vacancies in indium phosphide after electron irradiation

  • M. Tornqvist
  • , J. Nissila
  • , F. Kiessling
  • , C. Corbel
  • , K. Saarinen
  • , A. P. Seitsonen
  • , P. Hautojarvi

Research output: Contribution to journalConference articlepeer-review

Abstract

We report positron annihilation results on electron irradiated (2.0 MeV) InP. In all samples the average positron lifetime at 300 K increases after irradiation. Three defect lifetimes of 263 ps, 283 ps and 297 ps were found. In electron irradiated n-type InP(S:3.9 1018 cm-3), the 283 ps vacancy recovers between 150 K-200 K, and after annealing at 300 K the 263 ps vacancy remains. In irradiated SI-InP(Fe) a defect lifetime of 297 ps was found after annealing at 300 K. The defect lifetimes were interpreted as Vp (263 ps), VIn (297 ps) and a mixing of the two (283 ps).

Original languageEnglish
Pages (from-to)347-352
Number of pages6
JournalMaterials Science Forum
Volume143-4
Issue numberpt 1
Publication statusPublished - 1 Dec 1994
Externally publishedYes
EventProceedings of the 17th International Conference on Defects in Semiconductors. Part 1 (of 3) - Gmunden, Austria
Duration: 18 Jul 199323 Jul 1993

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