Engineering and Technology

Scalable two-terminal all-perovskite tandem solar modules with a 19.1% efficiency

B. A. Nejand, D. B. Ritzer, et al.

Discover the potential of monolithic all-perovskite tandem photovoltaics, combining low costs with high efficiencies of up to 19.1%. This groundbreaking research by Bahram Abdollahi Nejand, David B. Ritzer, Hang Hu, and their team showcases scalable fabrication methods and impressive performance metrics.

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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

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