title: The Silicon:Colloidal Quantum Dot Heterojunction.
abstract: A heterojunction between crystalline silicon and colloidal quantum dots (CQDs) is realized. A special interface modification is developed to overcome an inherent energetic band mismatch between the two semiconductors, and realize the efficient collection of infrared photocarriers generated in the CQD film. This junction is used to produce a sensitive near infrared photodetector.
authors.affiliation: Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
authors.forename: Silvia
authors.initials: S
authors.lastname: Masala
authors.affiliation: Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
authors.forename: Valerio
authors.initials: V
authors.lastname: Adinolfi
authors.affiliation: Department of Physics and Atmospheric Science, Dalhousie University, 1459, Oxford Street, Halifax, Nova Scotia, B3H 4R2, Canada.
authors.forename: Jon-Paul
authors.initials: JP
authors.lastname: Sun
authors.affiliation: Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
authors.forename: Silvano
authors.initials: S
authors.lastname: Del Gobbo
authors.affiliation: Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
authors.forename: Oleksandr
authors.initials: O
authors.lastname: Voznyy
authors.affiliation: Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
authors.forename: Illan J
authors.initials: IJ
authors.lastname: Kramer
authors.affiliation: Department of Physics and Atmospheric Science, Dalhousie University, 1459, Oxford Street, Halifax, Nova Scotia, B3H 4R2, Canada.
authors.forename: Ian G
authors.initials: IG
authors.lastname: Hill
authors.affiliation: Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
authors.forename: Edward H
authors.initials: EH
authors.lastname: Sargent
keywords: PbS; colloidal quantum dots; heterostructures; infrared; photodectors