Intense photoluminescence from ceria-based nanoscale lamellar hybrid

Takaaki Taniguchi, Yuki Sonoda, Makoto Echikawa, Yusuke Watanabe, Kazuto Hatakeyama, Shintaro Ida, Michio Koinuma, Yasumichi Matsumoto

    Research output: Contribution to journalArticlepeer-review

    24 Citations (Scopus)

    Abstract

    Nanosheets, which are ultrathin inorganic crystals, have the potential to exhibit unique surface states and quantum effects. These nanosheets can be further manipulated to form lamellar structures for the fabrication of advanced hybrid nanomaterials. Here we report that conventionally nonluminescent ceria yields intense UV photoluminescence with an internal quantum yield (QY) of 59% when self-organized into a nanosheet lamellar architecture with dodecyl sulfate (DS) bilayers. The origin of luminescence exist at the organic/inorganic interfaces, where surface Ce 3+ ions of ceria nanosheet layers graft with DS anions to activate radiative 5d→4f transition.

    Original languageEnglish
    Pages (from-to)1010-1015
    Number of pages6
    JournalACS Applied Materials and Interfaces
    Volume4
    Issue number2
    DOIs
    Publication statusPublished - Feb 22 2012

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)

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