Thermal and Chemical Stabilization of Silver Nanoplates for Plasmonic Sensor Application

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  • TAKAHASHI Yukina
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University Center for Future Chemistry, Kyushu University
  • SUGA Koichi
    Department of Materials Physics and Chemistry, Graduate School of Engineering, Kyushu University
  • ISHIDA Takuya
    Department of Materials Physics and Chemistry, Graduate School of Engineering, Kyushu University
  • YAMADA Sunao
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University Center for Future Chemistry, Kyushu University

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Abstract

Thermal and chemical stabilities of silver nanoplates (AgPLs), which are triangle plate-shaped silver nanoparticles, were improved by coating with titanium oxide. The titanium oxide layer prepared by a dip-coating method was certainly advantageous for the improvement of thermal stability. Furthermore, the overlayering of titanium oxide by a spray pyrolysis method was quite useful for improving the chemical stability against I− exposure. Such a coating exhibited satisfactory refractive index sensitivities.

Journal

  • Analytical Sciences

    Analytical Sciences 32 (3), 275-280, 2016

    The Japan Society for Analytical Chemistry

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