title: Enhanced photocurrent in the RuL2(NCS)2/ di-(3-aminopropyl)-viologen/Au nanoparticles/ITO system: use of Au nanoparticles for retardation of the back electron transfer reaction.
abstract: This paper reports the use of Au nanoparticles (NPs) as electron transfer bridge layers to improve the photocurrent of viologen/Ru complex-based photoelectrochemical cells. The Ru complex/ viologen/Au NPs on electrodes were prepared using self-assembled monolayers. The cell system showed an excellent photocurrent of 25 nA/cm2 under the 1.5 air mass condition (I = 100 mW/cm2), which is five times greater than Au NPs due to the reduced recombination reaction.
authors.affiliation: Department of Chemistry, Hanyang University, Haengdang-dong 17, Sungdong-ku, Seoul 133-791, Republic of Korea.
authors.forename: Wonjoo
authors.initials: W
authors.lastname: Lee
authors.forename: Sun-Ki
authors.initials: SK
authors.lastname: Mini
authors.forename: Gangri
authors.initials: G
authors.lastname: Cai
authors.forename: Yunhee
authors.initials: Y
authors.lastname: Hwang
authors.forename: Sujin
authors.initials: S
authors.lastname: Baek
authors.forename: Byung Won
authors.initials: BW
authors.lastname: Cho
authors.forename: Soo-Hyoung
authors.initials: SH
authors.lastname: Lee
authors.forename: Sung-Hwan
authors.initials: SH
authors.lastname: Han