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Copper‐Doped CdSe/ZnS Quantum Dots: Controllable Photoactivated Copper(I) Cation Storage and Release Vectors for Catalysis
Author(s) -
Bear Joseph C.,
Hollingsworth Nathan,
McNaughter Paul D.,
Mayes Andrew G.,
Ward Michael B.,
Nann Thomas,
Hogarth Graeme,
Parkin Ivan P.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201308778
Subject(s) - quantum dot , copper , photoexcitation , x ray photoelectron spectroscopy , catalysis , photochemistry , doping , chemistry , cycloaddition , quenching (fluorescence) , metal , materials science , inorganic chemistry , fluorescence , nanotechnology , excited state , chemical engineering , optoelectronics , organic chemistry , physics , quantum mechanics , nuclear physics , engineering
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.