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Abstract
Monolithic all-perovskite tandem photovoltaics offer a promising combination of low cost and high efficiency. This work reports on laser-scribed all-perovskite tandem modules fabricated using scalable methods (blade coating and vacuum deposition), achieving power conversion efficiencies up to 19.1% (12.25 cm² aperture area). Electroluminescence imaging and laser-beam-induced current mapping demonstrate homogeneous current collection, resulting in low losses in open-circuit voltage and fill factor.
Publisher
Nature Energy
Published On
Jul 07, 2022
Authors
Bahram Abdollahi Nejand, David B. Ritzer, Hang Hu, Fabian Schackmar, Somayeh Moghadamzadeh, Thomas Feeney, Roja Singh, Felix Laufer, Raphael Schmager, Raheleh Azmi, Milian Kaiser, Tobias Abzieher, Saba Gharibzadeh, Erik Ahlswede, Uli Lemmer, Bryce S. Richards, Ulrich W. Paetzold
Tags
perovskite
photovoltaics
power conversion efficiency
laser scribing
scalable methods
electroluminescence imaging
current collection

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