title: Efficient quenching of TGA-capped CdTe quantum dot emission by a surface-coordinated europium(III) cyclen complex.
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.
authors.affiliation: School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.
authors.forename: Shane A
authors.initials: SA
authors.lastname: Gallagher
authors.forename: Steve
authors.initials: S
authors.lastname: Comby
authors.forename: Michal
authors.initials: M
authors.lastname: Wojdyla
authors.forename: Thorfinnur
authors.initials: T
authors.lastname: Gunnlaugsson
authors.forename: John M
authors.initials: JM
authors.lastname: Kelly
authors.forename: Yurii K
authors.initials: YK
authors.lastname: Gun'ko
authors.forename: Ian P
authors.initials: IP
authors.lastname: Clark
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Greetham
authors.forename: Michael
authors.initials: M
authors.lastname: Towrie
authors.forename: Susan J
authors.initials: SJ
authors.lastname: Quinn
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry*; D000080027:Cyclams; D004583:Electrons; D005063:Europium / Q000737:chemistry*; D006571:Heterocyclic Compounds / Q000737:chemistry*; D049449:Luminescence; D045663:Quantum Dots; D013499:Surface Properties; D013691:Tellurium / Q000737:chemistry*; D013864:Thioglycolates / Q000737:chemistry*
chemical_list: D019187:Cadmium Compounds; D056831:Coordination Complexes; D000080027:Cyclams; D006571:Heterocyclic Compounds; D013864:Thioglycolates; D005063:Europium; C017487:2-mercaptoacetate; C038072:cyclen; D013691:Tellurium; C028337:cadmium telluride