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

被引:0
作者
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
机构
[1] Karlsruhe Institute of Technology,Institute of Microstructure Technology
[2] Karlsruhe Institute of Technology,Light Technology Institute
[3] Karlsruhe Institute of Technology (KIT),Institute for Applied Materials (IAM)
[4] Center for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW),undefined
来源
Nature Energy | 2022年 / 7卷
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摘要
Monolithic all-perovskite tandem photovoltaics promise to combine low-cost and high-efficiency solar energy harvesting with the advantages of all-thin-film technologies. To date, laboratory-scale all-perovskite tandem solar cells have only been fabricated using non-scalable fabrication techniques. In response, this work reports on laser-scribed all-perovskite tandem modules processed exclusively with scalable fabrication methods (blade coating and vacuum deposition), demonstrating power conversion efficiencies up to 19.1% (aperture area, 12.25 cm2; geometric fill factor, 94.7%) and stable power output. Compared to the performance of our spin-coated reference tandem solar cells (efficiency, 23.5%; area, 0.1 cm2), our prototypes demonstrate substantial advances in the technological readiness of all-perovskite tandem photovoltaics. By means of electroluminescence imaging and laser-beam-induced current mapping, we demonstrate the homogeneous current collection in both subcells over the entire module area, which explains low losses (<5%rel) in open-circuit voltage and fill factor for our scalable modules.
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页码:620 / 630
页数:10
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