Ultrafast spectroscopy of stimulated emission in single ZnO tetrapod nanowires

A. B. Djurišić, Wai Ming Kwok, Y. H. Leung, W. K. Chan, D. L. Phillips, M. S. Lin, S. Gwo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)

Abstract

Stimulated emission from single ZnO tetrapod nanowires was studied by time-resolved photoluminescence (TRPL) spectroscopy. The samples were excited by a 300 fs pulse and the emission spectra collected as a function of time. The spectra exhibit a change in the position and the shape of the emission peak with time. The time evolution of the emission spectra was studied for different pump excitation fluences. The spectra exhibited a blue shift with increasing pump fluence, while for all pump fluences a red shift of the peaks with time was obtained. Possible reasons for the observed behaviour are discussed.
Original languageEnglish
Pages (from-to)244-249
Number of pages6
JournalNanotechnology
Volume17
Issue number1
DOIs
Publication statusPublished - 14 Jan 2006
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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