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Nonhazardous Solvent Systems for Processing Perovskite Photovoltaics
Author(s) -
Gardner Kira L.,
Tait Jeffrey G.,
Merckx Tamara,
Qiu Weiming,
Paetzold Ulrich W.,
Kootstra Lucinda,
Jaysankar Manoj,
Gehlhaar Robert,
Cheyns David,
Heremans Paul,
Poortmans Jef
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201600386
Subject(s) - photovoltaics , perovskite (structure) , materials science , halide , energy conversion efficiency , solvent , pinhole (optics) , thin film , photovoltaic system , chemical engineering , nanotechnology , inorganic chemistry , optoelectronics , organic chemistry , chemistry , optics , electrical engineering , physics , engineering
Replacing toxic solvents with nonhazardous solvents is one of the key challenges for industrial scale commercialization of thin film perovskite photovoltaics. Here, nonhazardous solvent/alcohol/acid systems are presented for the single‐step deposition of pinhole‐free perovskite layers with combined lead halide precursors of Pb(CH 3 CO 2 ) 2 ·3H 2 O, PbCl 2 , and CH 3 NH 3 I. Comparable performance to standard hazardous inks is achieved: devices with 15.1% power conversion efficiency are demonstrated and maintain 13.5% tracked for 5 min at maximum power point. Blade coated 4 cm 2 solar modules fabricated with highest performing device ink attain 11.9% in power conversion efficiency.
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