ZnO coated nanoparticle phosphors

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    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.

    Original languageEnglish
    Title of host publicationMaterials Research Society Symposium Proceedings
    Pages93-100
    Number of pages8
    Volume1394
    DOIs
    Publication statusPublished - 2011
    Event2011 MRS Fall Meeting - Boston, MA
    Duration: 2011 Nov 282011 Dec 2

    Other

    Other2011 MRS Fall Meeting
    CityBoston, MA
    Period11/11/2811/12/2

    Fingerprint

    Phosphors
    phosphors
    Nanoparticles
    nanoparticles
    balls
    Transmission electron microscopy
    coatings
    Coatings
    Wavelength
    transmission electron microscopy
    Ball milling
    wavelengths
    ultraviolet radiation
    Solar cells
    Photoluminescence
    solar cells
    breakdown
    Single crystals
    Color
    photoluminescence

    ASJC Scopus subject areas

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

    Cite this

    Kobayashi, M. (2011). ZnO coated nanoparticle phosphors. In Materials Research Society Symposium Proceedings (Vol. 1394, pp. 93-100) https://doi.org/10.1557/opl.2012.654

    ZnO coated nanoparticle phosphors. / Kobayashi, Masakazu.

    Materials Research Society Symposium Proceedings. Vol. 1394 2011. p. 93-100.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Kobayashi, M 2011, ZnO coated nanoparticle phosphors. in Materials Research Society Symposium Proceedings. vol. 1394, pp. 93-100, 2011 MRS Fall Meeting, Boston, MA, 11/11/28. https://doi.org/10.1557/opl.2012.654
    Kobayashi M. ZnO coated nanoparticle phosphors. In Materials Research Society Symposium Proceedings. Vol. 1394. 2011. p. 93-100 https://doi.org/10.1557/opl.2012.654
    Kobayashi, Masakazu. / ZnO coated nanoparticle phosphors. Materials Research Society Symposium Proceedings. Vol. 1394 2011. pp. 93-100
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