Enhanced luminescence from catalyst-free grown InP nanowires

M. Mattila, T. Hakkarainen, H. Lipsanen, Hua Jiang, Esko I. Kauppinen

Research output: Contribution to journalArticleScientificpeer-review

40 Citations (Scopus)

Abstract

The surface effects in the optical properties of catalyst-free grown InP nanowires are investigated. Both as-grown nanowires and nanowires treated with hydrofluoric acid are studied using low- and room-temperature continuous-wave and time-resolved photoluminescence measurements and transmission electron microscopy. It is shown that the room-temperature photoluminescence intensity is increased by two orders of magnitude after the surface treatment, and that there is also a significant increase in the double-exponential photoluminescence decay time.
Original languageEnglish
Article number033101
Number of pages3
JournalApplied Physics Letters
Volume90
Issue number3
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

Keywords

  • indium
  • indium compounds
  • iii-v semiconductors
  • nanowires
  • semiconductor quantum wires
  • surface treatment
  • photoluminescence
  • spectral line intensity
  • time resolved spectra
  • transmission electron microscopy

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