Plasmon Enhanced Optical Responses of Diarylethene Molecules Adsorbed on Gold Nanorods

Access this Article

Author(s)

    • Noda Syogo
    • Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University
    • Hasegawa Seiju
    • Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University
    • Hamada Hiroyuki
    • Department of Applied Chemistry, Graduate School of Engineering, Osaka City University
    • Kobatake Seiya
    • Department of Applied Chemistry, Graduate School of Engineering, Osaka City University
    • Imura Kohei
    • Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University

Abstract

<p>Assemblies of gold nanorods capped with poly-diarylethene (DE) were chemically prepared in a solution. Plasmon assisted optical responses of the poly(DE) have been studied. Fluorescence from the open-form of DE was mostly quenched near 550 nm due to interband transition of gold, while fluorescence near 700 nm was slightly enhanced by the longitudinal plasmon resonance. Cycloreversion reaction of the gold nanorod-poly(DE) has been also studied, and it has been found that the reaction rate is enhanced by the plasmon excitation and increases nearly two-fold in the assembly. The magnitude of the enhancement is qualitatively consistent with the spatially and orientationally averaged value of the simulated optical field enhancements in the vicinity of the nanorod.</p>

Journal

  • Chemistry Letters

    Chemistry Letters 48(6), 537-540, 2019

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130007659798
  • Text Lang
    ENG
  • ISSN
    0366-7022
  • Data Source
    J-STAGE 
Page Top