Extraordinary enhancement of porphyrin photocurrent utilizing plasmonic silver arrays

Kosuke Sugawa, Koji Uchida, Naoto Takeshima, Shota Jin, Natsumi Tsunenari, Hideyuki Takeda, Yuki Kida, Tsuyoshi Akiyama, Joe Otsuki, Kouichi Takase, Sunao Yamada

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)


    We demonstrate up to ∼630-fold enhancement of the photocurrent from a porphyrin monolayer on a plasmonic Ag-array electrode showing plasmon absorption in the Q-band region relative to that on a planar Ag electrode. The photocurrent obtained by the Q-band excitation in the plasmonic electrodes even exceeded that obtained by the Soret-band excitation in a normal, nonplasmonic electrode.

    Original languageEnglish
    Pages (from-to)15467-15472
    Number of pages6
    Issue number34
    Publication statusPublished - Sept 14 2016

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)


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