Control of luminescence intensity from rare earth ion (Eu3+, Tu3+)-doped polyimide nanoparticles by UV-irradiation and thermal treatment

T. Ishizaka, H. Kasai, H. Nakanishi, Hitoshi Kasai, H. Nakanishi

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    1 Citation (Scopus)

    Abstract

    The control of luminescence intensity from rare earth ion (Eu 3+, Tu3+)-(doped polyimide (PI) nanoparticle film by UV-irradiation and thermal treatment is reported. In the system, it was observed that luminescence intensity assigned to rare earth ion increased with increase of UV-irradialion time, whereas the intensity decreased with elevation of thermal treatment temperature. It was estimated that the mechanism of the above phenomena is based on a reversible change in an energy transfer probability from PI to rare earth ion by the UV-irradiation and the thermal treatment.

    Original languageEnglish
    Pages (from-to)103-110
    Number of pages8
    JournalMolecular crystals and liquid crystals
    Volume424
    DOIs
    Publication statusPublished - 2004 Dec 1

    Keywords

    • Energy transfer
    • Luminescence
    • Polyimide
    • Rare earth ion

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Science(all)
    • Condensed Matter Physics

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