Abstract
Extremely efficient quenching of the excited state of aqueous CdTe quantum dots (QDs) by photoinduced electron transfer to a europium cyclen complex is facilitated by surface coordination to the thioglycolic acid capping ligand. The quenching dynamics are elucidated using steady-state emission and picosecond transient absorption.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Cadmium Compounds / chemistry*
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Coordination Complexes / chemistry*
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Cyclams
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Electrons
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Europium / chemistry*
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Heterocyclic Compounds / chemistry*
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Luminescence
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Quantum Dots*
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Surface Properties
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Tellurium / chemistry*
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Thioglycolates / chemistry*
Substances
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Cadmium Compounds
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Coordination Complexes
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Cyclams
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Heterocyclic Compounds
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Thioglycolates
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Europium
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2-mercaptoacetate
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cyclen
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Tellurium
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cadmium telluride