title: Control of exciton confinement in quantum dot-organic complexes through energetic alignment of interfacial orbitals.
abstract: This paper describes a method to control the quantum confinement, and therefore the energy, of excitonic holes in CdSe QDs through adsorption of the hole-delocalizing ligand phenyldithiocarbamate, PTC, and para substitutions of the phenyl ring of this ligand with electron-donating or -withdrawing groups. These substitutions control hole delocalization in the QDs through the energetic alignment of the highest occupied orbitals of PTC with the highest density-of-states region of the CdSe valence band, to which PTC couples selectively.
authors.affiliation: Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208-3113, USA.
authors.forename: Matthew T
authors.initials: MT
authors.lastname: Frederick
authors.forename: Victor A
authors.initials: VA
authors.lastname: Amin
authors.forename: Nathaniel K
authors.initials: NK
authors.lastname: Swenson
authors.forename: Andrew Y
authors.initials: AY
authors.lastname: Ho
authors.forename: Emily A
authors.initials: EA
authors.lastname: Weiss