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Title: Passivation Using Molecular Halides Increases Quantum Dot Solar Cell Performance
Authors: Xinzheng Lan
Oleksandr Voznyy
Amirreza Kiani
F. Pelayo García De Arquer
Abdullah Saud Abbas
Gi Hwan Kim
Mengxia Liu
Zhenyu Yang
Grant Walters
Jixian Xu
Mingjian Yuan
Zhijun Ning
Fengjia Fan
Pongsakorn Kanjanaboos
Illan Kramer
David Zhitomirsky
Philip Lee
Alexander Perelgut
Sjoerd Hoogland
Edward H. Sargent
University of Toronto
ShanghaiTech University
Mahidol University
Keywords: Engineering;Materials Science
Issue Date: 13-Jan-2016
Citation: Advanced Materials. Vol.28, No.2 (2016), 299-304
Abstract: © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Here we report a solution-based passivation scheme is developed featuring the use of molecular iodine and PbS colloidal quantum dots (CQDs). The improved passivation translates into a longer carrier diffusion length in the solid film. This allows thicker solar-cell devices to be built while preserving efficient charge collection, leading to a certified power conversion efficiency of 9.9%, which is a new record in CQD solar cells.
ISSN: 15214095
Appears in Collections:Scopus 2016-2017

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