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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

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
  • General Chemistry
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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