title: Size-selected subnanometer cluster catalysts on semiconductor nanocrystal films for atomic scale insight into photocatalysis.
abstract: We introduce size-selected subnanometer cluster catalysts deposited on thin films of colloidal semiconductor nanocrystals as a novel platform to obtain atomic scale insight into photocatalytic generation of solar fuels. Using Pt-cluster-decorated CdS nanorod films for photocatalytic hydrogen generation as an example, we determine the minimum amount of catalyst necessary to obtain maximum quantum efficiency of hydrogen generation. Further, we provide evidence for tuning photocatalytic activities by precisely controlling the cluster catalyst size.
authors.affiliation: Photonics and Optoelectronics Group, Department of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Amalienstrasse 54, 80799 München, Germany.
authors.forename: Maximilian J
authors.initials: MJ
authors.lastname: Berr
authors.forename: Florian F
authors.initials: FF
authors.lastname: Schweinberger
authors.forename: Markus
authors.initials: M
authors.lastname: Döblinger
authors.forename: Kai E
authors.initials: KE
authors.lastname: Sanwald
authors.forename: Christian
authors.initials: C
authors.lastname: Wolff
authors.forename: Johannes
authors.initials: J
authors.lastname: Breimeier
authors.forename: Andrew S
authors.initials: AS
authors.lastname: Crampton
authors.forename: Claron J
authors.initials: CJ
authors.lastname: Ridge
authors.forename: Martin
authors.initials: M
authors.lastname: Tschurl
authors.forename: Ulrich
authors.initials: U
authors.lastname: Heiz
authors.forename: Frank
authors.initials: F
authors.lastname: Jäckel
authors.forename: Jochen
authors.initials: J
authors.lastname: Feldmann