title: Large-Scale Programmable Synthesis of PbS Quantum Dots.
abstract: The most common method of synthesizing colloidal quantum dots (QDs) relies on an increasing particle size through increasing reaction time. We demonstrate a synthesis where the QD size is programmable through the use of a secondary phosphine sulfide precursor. The reaction runs to thermodynamic completion, resulting in a desired PbS diameter for a given set of specific reaction conditions, with no need for reaction quenching or post-synthesis size-separation. Moreover, this method is shown to produce high-quality PbS QDs on the grams scale.
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY, 14627, USA.
authors.forename: Amanda
authors.initials: A
authors.lastname: Preske
authors.affiliation: Department of Chemical Engineering, University of Rochester, Rochester, NY, 14627, USA.
authors.forename: Jin
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Chemistry, University of Southern California, Los Angeles, CA, 90089, USA.
authors.forename: Oleg V
authors.initials: OV
authors.lastname: Prezhdo
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY, 14627, USA. Krauss@chem.rochester.edu.|Institute of Optics, University of Rochester, Rochester, NY, 14627, USA. Krauss@chem.rochester.edu.
authors.forename: Todd D
authors.initials: TD
authors.lastname: Krauss
mesh_terms: D007854:Lead; D046529:Microscopy, Electron, Transmission; D045663:Quantum Dots; D013056:Spectrophotometry, Ultraviolet; D013440:Sulfides / Q000138:chemical synthesis*
chemical_list: D013440:Sulfides; C018391:lead sulfide; D007854:Lead
keywords: inorganic synthesis; lead sulfide; quantum dots; secondary phosphines; semiconductors