{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Cogan NMB"],"funding":["Basic Energy Sciences"],"pagination":["10221-10227"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10683070"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["23(22)"],"pubmed_abstract":["A limitation of the implementation of cadmium chalcogenide quantum dots (QDs) in charge transfer systems is the efficient removal of photogenerated holes. Rapid hole transfer has typically required the <i>ex situ</i> functionalization of hole acceptors with groups that can coordinate to the surface of the QD. In addition to being synthetically limiting, this strategy also necessitates a competitive binding equilibrium between the hole acceptor and native, solubilizing ligands on the nanocrystal. Here we show that the incorporation of oxygen vacancies into polyoxovanadate-alkoxide clusters improves hole transfer kinetics by promoting surface interactions between the metal oxide assembly and the QD. Investigating the reactivity of oxygen-deficient clusters with phosphonate-capped QDs reveals reversible complexation of the POV-alkoxide with a phosphonate ligand at the nanocrystal surface. These findings reveal a new method of facilitating QD-hole acceptor association that bypasses the restrictions of exchange interactions."],"journal":["Nano letters"],"pubmed_title":["Efficient Hole Transfer from CdSe Quantum Dots Enabled by Oxygen-Deficient Polyoxovanadate-Alkoxide Clusters."],"pmcid":["PMC10683070"],"funding_grant_id":["DE-SC0002106"],"pubmed_authors":["McClelland KP","Matson EM","Amin M","Peter CYM","Cogan NMB","Carmenate Rodriguez C","Krauss TD","Brennessel WW","Fertig AA"],"additional_accession":[]},"is_claimable":false,"name":"Efficient Hole Transfer from CdSe Quantum Dots Enabled by Oxygen-Deficient Polyoxovanadate-Alkoxide Clusters.","description":"A limitation of the implementation of cadmium chalcogenide quantum dots (QDs) in charge transfer systems is the efficient removal of photogenerated holes. Rapid hole transfer has typically required the <i>ex situ</i> functionalization of hole acceptors with groups that can coordinate to the surface of the QD. In addition to being synthetically limiting, this strategy also necessitates a competitive binding equilibrium between the hole acceptor and native, solubilizing ligands on the nanocrystal. Here we show that the incorporation of oxygen vacancies into polyoxovanadate-alkoxide clusters improves hole transfer kinetics by promoting surface interactions between the metal oxide assembly and the QD. Investigating the reactivity of oxygen-deficient clusters with phosphonate-capped QDs reveals reversible complexation of the POV-alkoxide with a phosphonate ligand at the nanocrystal surface. These findings reveal a new method of facilitating QD-hole acceptor association that bypasses the restrictions of exchange interactions.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Nov","modification":"2025-04-18T13:12:59.617Z","creation":"2025-04-06T22:46:14.391Z"},"accession":"S-EPMC10683070","cross_references":{"pubmed":["37935022"],"doi":["10.1021/acs.nanolett.3c02749"]}}