title: Copper-doped CdSe/ZnS quantum dots: controllable photoactivated copper(I) cation storage and release vectors for catalysis.
abstract: The first photoactivated doped quantum dot vector for metal-ion release has been developed. A facile method for doping copper(I) cations within ZnS quantum dot shells was achieved through the use of metal-dithiocarbamates, with Cu(+) ions elucidated by X-ray photoelectron spectroscopy. Photoexcitation of the quantum dots has been shown to release Cu(+) ions, which was employed as an effective catalyst for the Huisgen [3+2] cycloaddition reaction. The relationship between the extent of doping, catalytic activity, and the fluorescence quenching was also explored.
authors.affiliation: Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ (UK).
authors.forename: Joseph C
authors.initials: JC
authors.lastname: Bear
authors.forename: Nathan
authors.initials: N
authors.lastname: Hollingsworth
authors.forename: Paul D
authors.initials: PD
authors.lastname: McNaughter
authors.forename: Andrew G
authors.initials: AG
authors.lastname: Mayes
authors.forename: Michael B
authors.initials: MB
authors.lastname: Ward
authors.forename: Thomas
authors.initials: T
authors.lastname: Nann
authors.forename: Graeme
authors.initials: G
authors.lastname: Hogarth
authors.forename: Ivan P
authors.initials: IP
authors.lastname: Parkin
keywords: click chemistry; copper catalysis; core-shell materials; heterogeneous catalysis; quantum dots