title: All-inorganic colloidal quantum dot photovoltaics employing solution-phase halide passivation.
abstract: A new solution-phase halide passivation strategy to improve the electronic properties of colloidal quantum dot films is reported. We prove experimentally that the approach leads to an order-of-magnitude increase in mobility and a notable reduction in trap state density. We build solar cells having the highest efficiency (6.6%) reported using all-inorganic colloidal quantum dots. The improved photocurrent results from increased efficiency of collection of infrared-generated photocarriers.
authors.affiliation: Department of Electrical and Computer Engineering, University of Toronto, Ontario, Canada.
authors.forename: Zhijun
authors.initials: Z
authors.lastname: Ning
authors.forename: Yuan
authors.initials: Y
authors.lastname: Ren
authors.forename: Sjoerd
authors.initials: S
authors.lastname: Hoogland
authors.forename: Oleksandr
authors.initials: O
authors.lastname: Voznyy
authors.forename: Larissa
authors.initials: L
authors.lastname: Levina
authors.forename: Philipp
authors.initials: P
authors.lastname: Stadler
authors.forename: Xinzheng
authors.initials: X
authors.lastname: Lan
authors.forename: David
authors.initials: D
authors.lastname: Zhitomirsky
authors.forename: Edward H
authors.initials: EH
authors.lastname: Sargent