Low-temperature synthesis of nanosize Zn2SiO4:Mn 2+ phosphor from the precursor sol in supercritical ethanol and its photoluminescent properties

Takuro Miki, Takumi Ogawa, Tetsuhiko Isobe, Hocine Sfihi

研究成果: Review article査読

18 被引用数 (Scopus)

抄録

The solvothermal reaction in supercritical ethanol produces nanosize Zn2SiO4:Mn2+ from the precursor sol derived from the mixture of zinc acetate, manganese acetate and TEOS. Spherical primary particles of 10-20 nm were grown to the rod-like particles of 10-30 nm diameter and 200-350 nm length by increasing the aging temperature from 200 to 265°C and by optimizing the water/ethanol ratio of sol. This crystal growth improved the intensity of green emission due to the d-d transition of Mn2+ through energy transfer from Zn2SiO4, We discuss the process of Zn2SiO4:Mn2+ crystal growth during the solvothermal reaction in supercritical ethanol.

本文言語English
ページ(範囲)73-77
ページ数5
ジャーナルJournal of Sol-Gel Science and Technology
31
1-3 SPEC.ISS.
DOI
出版ステータスPublished - 2004 8

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • セラミックおよび複合材料
  • 化学 (全般)
  • 生体材料
  • 凝縮系物理学
  • 材料化学

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