Preparation of Sub-10 nm AgI Nanoparticles and a Study on their Phase Transition Temperature

Authors

  • Shuhei Yamasaki,

    1. Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan), Fax: (+81) 75-753-4035
    2. Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Fukuoka 812-8581 (Japan)
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  • Dr. Teppei Yamada,

    Corresponding author
    1. Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan), Fax: (+81) 75-753-4035
    • Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan), Fax: (+81) 75-753-4035

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  • Dr. Hirokazu Kobayashi,

    1. Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan), Fax: (+81) 75-753-4035
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  • Prof. Hiroshi Kitagawa

    Corresponding author
    1. Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan), Fax: (+81) 75-753-4035
    2. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Sanbancho 5, Chiyoda-ku, Tokyo 102-0075 (Japan)
    3. Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501 (Japan)
    • Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan), Fax: (+81) 75-753-4035

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Abstract

original image

When size matters! Silver iodide nanoparticles (AgI NPs) with a mean diameter of 6.3±4.2 nm were synthesized using potassium iodide. The α phase of the AgI NPs was stable up to 37 °C, as determined by differential scanning calorimetry, which is in good agreement with variable temperature XRD measurements.

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