Surface anisotropic electroreflectance response at an edge-plane pyrolytic graphite electrode

Takamasa Sagara, Hiroshi Nomaguchi, Naotoshi Nakashima

    研究成果: ジャーナルへの寄稿学術誌査読

    8 被引用数 (Scopus)

    抄録

    We found that the potential-modulated UV-vis reflectance (electroreflectance, ER) spectrum measured with linearly polarized incident light at an edge-plane graphite (EPG) electrode with adsorbed redox species shows surface anisotropy. At a hemin or methylene blue-adsorbed EPG electrode, s-polarized incident light gave rise to greater ER response than p-polarized when the c axis of the graphite electrode is parallel to the plane of incidence, while when the c axis is perpendicular to the plane of incidence p-polarized light gave rise to greater response. The anisotropy was also observed for an EPG electrode coated with a Nafion film in which adsorptive species was incorporated. In contrast, methylviologen-incorporated Nafion films did not produce the anisotropy. The possible origin of the anisotropy was discussed in light of the surface morphology of the EPG as observed by the SEM.

    本文言語英語
    ページ(範囲)6393-6396
    ページ数4
    ジャーナルJournal of physical chemistry
    100
    16
    DOI
    出版ステータス出版済み - 4月 18 1996

    !!!All Science Journal Classification (ASJC) codes

    • 工学(全般)
    • 物理化学および理論化学

    フィンガープリント

    「Surface anisotropic electroreflectance response at an edge-plane pyrolytic graphite electrode」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル