Preparation of SrS: Ce/ZnO core-shell nanoparticles using reverse micelle method

Yusuke Kusakari, Shinji Ishizaki, Masakazu Kobayashi

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

    3 Citations (Scopus)

    Abstract

    SrS:Ce nanoparticles were prepared using a reverse micelle method and coated by ZnO. The mono-dispersed nanoparticles whose size was as small as 3nm were observed by transmission electron microscope (TEM) and dynamic light scattering (DLS) method. Optical properties of the core-shell SrS:Ce/ZnO nanoparticle was studied. UV-visible absorption and photoluminescence (PL) properties were measured and compared with those of SrS:Ce and SrS nanoparticles. Bright blue photoluminescence (around 440 nm) was observed from SrS:Ce at a room temperature when nanoparticles were excited using a Hg lamp. The PL peak intensity enhancement was observed after forming the ZnO shell. The optical absorption profile of nanoparticles was associated with the band edge feature of SrS. The coating of the SrS:Ce surface by ZnO has affected the electronic structure of SrS:Ce nanoparticles.

    Original languageEnglish
    Title of host publicationMaterials Research Society Symposium Proceedings
    EditorsG.J. Brown, R.M. Biefeld, C. Gmachl, M.O. Manasreh, K. Unterrainer
    Pages485-489
    Number of pages5
    Volume829
    Publication statusPublished - 2005
    EventProgress in Compound Semiconductor Materials IV - Electronic and Optoelectronic Applications - Boston, MA, United States
    Duration: 2004 Nov 292004 Dec 3

    Other

    OtherProgress in Compound Semiconductor Materials IV - Electronic and Optoelectronic Applications
    CountryUnited States
    CityBoston, MA
    Period04/11/2904/12/3

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    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials

    Cite this

    Kusakari, Y., Ishizaki, S., & Kobayashi, M. (2005). Preparation of SrS: Ce/ZnO core-shell nanoparticles using reverse micelle method. In G. J. Brown, R. M. Biefeld, C. Gmachl, M. O. Manasreh, & K. Unterrainer (Eds.), Materials Research Society Symposium Proceedings (Vol. 829, pp. 485-489). [B10.2]