Synthesis and luminescence properties of a Cyan-blue thiosilicate-based Phosphor SrSi2S5:Eu2+

Masayoshi Nakamura, Hideki Kato, Yuji Takatsuka, Valery Petrykin, Satoko Tezuka, Masato Kakihana

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A series of Sr-Si-S compounds was synthesized using an advanced chemical method in which the use of one solution-based process uniformly dispersed the Eu2+ activators in the host crystals, to find new compositions that would suit phosphor applications. Particular focus was given to the Si-rich region. This led to the synthesis of a single-phase compound that showed an unknown X-ray diffraction pattern. This compound had a composition close to that of SrSi2S5. When this compound is activated with Eu2+ (SrSi2S5:Eu2+), it shows a cyan-blue emission with a main luminescence peak at 495 nm. This emission is excited by wavelengths of 250–440 nm and has a maximum excitation at 350 nm.

Original languageEnglish
Pages (from-to)135-139
Number of pages5
JournalJournal of Information Display
Issue number4
Publication statusPublished - 2010 Jan 1


  • Cyan phosphor
  • New compositions in strontium thiosilicate
  • Thiosilicates

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering

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