Time-resolved spectroscopic study of energy transfer in ZnO:EuCl3 phosphors

Yong Kuy Park, Jeong In Han, Min Gi Kwak, Haesuk Yang, Sung Hoo Ju, Whang Sin Cho

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

EuCl3-doped ZnO phosphors are synthesized by sintering in vacuum atmosphere. From PL measurements it is found that, with increasing doping concentration, the broad-band emission centered around 530 nm gradually disappears while the sharp red-emission peaks around 620 nm exhibit a pronounced increase. These results, together with XRD, PL excitation spectra and time-resolved spectra measurements, suggest that an energy-transfer process occurs from the self-activated defect center in ZnO host to the Eu3+ ion which exists in the host lattice in the form of EuOCl.

Original languageEnglish
Pages (from-to)87-90
Number of pages4
JournalJournal of Luminescence
Volume78
Issue number1
DOIs
StatePublished - 30 Jan 1998

Keywords

  • Energy transfer
  • Photoluminescence
  • Time-resolved spectroscopy
  • ZnO:Eu

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