Near-infrared Raman spectroscopy as a unique tool for characterization of visible luminescent ZnS phosphor

Osada Minoru, Kakihana Masato, Adachi Ryuji, Ichihara Takashi, Kijima Naoto

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Near-infrared (NIR) Raman spectroscopy has shown its unique advantages for characterization of ZnS:Cu, Al materials, emitting a strong luminescence in the visible region. We demonstrate that, because of a rapid decrease of luminescence in the NIR region, Raman spectra with 752.5-nm excitation are free from the visible luminescence, which usually masks Raman signals with visible excitations. By comparing the spectra of ZnS:Cu, Al samples with different luminescence efficiencies, we also find that crystal imperfections, including coexistence of hexagonal domains, can lead to a reduction of luminescence properties.

Original languageEnglish
Pages (from-to)225-227
Number of pages3
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume110
Issue number1280
Publication statusPublished - 2002 Apr
Externally publishedYes

Keywords

  • Luminescence property
  • Near-infrared Raman spectroscopy
  • Phase characterization
  • Visible luminescent phosphor
  • Zinc sulfide

ASJC Scopus subject areas

  • Ceramics and Composites

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