title: Extraordinary enhancement of porphyrin photocurrent utilizing plasmonic silver arrays.
abstract: 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.
authors.affiliation: Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Sugawa
authors.affiliation: Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Uchida
authors.affiliation: Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan.
authors.forename: Naoto
authors.initials: N
authors.lastname: Takeshima
authors.affiliation: Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan.
authors.forename: Shota
authors.initials: S
authors.lastname: Jin
authors.affiliation: Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan.
authors.forename: Natsumi
authors.initials: N
authors.lastname: Tsunenari
authors.affiliation: Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Takeda
authors.affiliation: Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Kida
authors.affiliation: Department of Materials Science, School of Engineering, The University of Shiga Prefecture, Hikone, Shiga 522-8533, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Akiyama
authors.affiliation: Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan.
authors.forename: Joe
authors.initials: J
authors.lastname: Otsuki
authors.affiliation: Department of Physics, College of Science and Technology, Nihon University, Chiyoda, Tokyo 101-0062, Japan.
authors.forename: Kouichi
authors.initials: K
authors.lastname: Takase
authors.affiliation: Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Moto-oka, Nishiku, Fukuoka 819-0395, Japan. sugawa.kosuke@nihon-u.ac.jp.
authors.forename: Sunao
authors.initials: S
authors.lastname: Yamada