ZnO coated nanoparticle phosphors

研究成果: Conference contribution

抜粋

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.

元の言語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
出版物ステータスPublished - 2011 12 1
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(印刷物)0272-9172

Conference

Conference2011 MRS Fall Meeting
United States
Boston, MA
期間11/11/2812/12/2

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • これを引用

    Kobayashi, M. (2011). ZnO coated nanoparticle phosphors. : Oxide Semiconductors-Defects, Growth and Device Fabrication (pp. 93-100). (Materials Research Society Symposium Proceedings; 巻数 1394). https://doi.org/10.1557/opl.2012.654