ZnO coated nanoparticle phosphors

Masakazu Kobayashi*

*この研究の対応する著者

研究成果: Conference contribution

抄録

Conventional phosphor materials are doped ternary or quaternary compounds; hence it would be difficult to prepare nanoparticles of those materials by build up methods. Ba2ZnS3:Mn (BZS), SrGa2S 4:Eu, and BaAl2S4:Eu nanoparticles were prepared by a break down method, namely the ball-milling method. Transmission electron microscopy (TEM) and TEM- energy-dispersive X-ray spectroscopy (EDX) measurements showed several-nanometer-size stoichiometric and dispersed nanoparticles were achieved. ZnO-coating was performed and the uniform coating layers were formed on the phosphor nanoparticles. The ZnO-coated nanoparticles exhibited an improved stability in Photoluminescence. Red color phosphor material, namely BZS, was ball-milled and sprayed on the glass substrate. Mn doped BZS absorbs ultra violet light and emits red light peaking at around 640nm. When the single crystal Si solar cell was placed under the transparent nanoparticle layer, short wavelength light was absorbed and converted to long wavelength light.

本文言語English
ホスト出版物のタイトルOxide Semiconductors-Defects, Growth and Device Fabrication
ページ93-100
ページ数8
DOI
出版ステータスPublished - 2011
イベント2011 MRS Fall Meeting - Boston, MA, United States
継続期間: 2011 11 282012 12 2

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1394
ISSN(印刷版)0272-9172

Conference

Conference2011 MRS Fall Meeting
国/地域United States
CityBoston, MA
Period11/11/2812/12/2

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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