Advanced Materials, volume 28, issue 2, pages 299-304

Passivation Using Molecular Halides Increases Quantum Dot Solar Cell Performance.

Xinzheng Lan 1
Amirreza Kiani 1
F. Pelayo García de Arquer 1
Abdullah Saud Abbas 1
Gi Hwan Kim 1
Jiachen Liu Jiachen Liu 1
Zhenyu Yang 1
Grant C. Walters 1
Jixian Xu 1
Mingjian Yuan 1
Zhijun Ning 2
Fengjia Fan 1
Illan J Kramer 1
David Zhitomirsky 1
Philip Lee 1
Alexander Perelgut 1
Edward H Sargent 1
Show full list: 20 authors
Publication typeJournal Article
Publication date2015-11-18
scimago Q1
SJR9.191
CiteScore43.0
Impact factor27.4
ISSN09359648, 15214095
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
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.
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