DataVXACS Energy LettersPaper
journal article·2022-04-08Open access

Perovskite/CIGS Tandem Solar Cells: From Certified 24.2% toward 30% and Beyond

Marko Jošt, Eike Köhnen, Amran Al-Ashouri, Tobias Bertram, Špela Tomšič, Artiom Magomedov, Ernestas Kasparavicius, Tim Kodalle, Benjamin Lipovšek, Vytautas Getautis, Rutger Schlatmann, Christian A. Kaufmann, Steve Albrecht, Marko Topič

ACS Energy Letters· Volume 7· Issue 4
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Abstract

We demonstrate a monolithic perovskite/CIGS tandem solar cell with a certified power conversion efficiency (PCE) of 24.2%. The tandem solar cell still exhibits photocurrent mismatch between the subcells; thus optical simulations are used to determine the optimal device stack. Results reveal a high optical potential with the optimized device reaching a short-circuit current density of 19.9 mA cm-2 and 32% PCE based on semiempirical material properties. To evaluate its energy yield, we first determine the CIGS temperature coefficient, which is at -0.38% K-1 notably higher than the one from the perovskite subcell (-0.22% K-1), favoring perovskite in the field operation at elevated cell temperatures. Both single-junction cells, however, are significantly outperformed by the combined tandem device. The enhancement in energy output is more than 50% in the case of CIGS single-junction device. The results demonstrate the high potential of perovskite/CIGS tandem solar cells, for which we describe optical guidelines toward 30% PCE.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Faculty of Electrical Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia

Young Investigator Group Perovskite Tandem Solar Cells, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489 Berlin, Germany

PVcomB, Helmholtz Zentrum Berlin für Materialien und Energie, 12489 Berlin, Germany

Department of Organic Chemistry, Kaunas University of Technology, 50254 Kaunas, Lithuania

Faculty 1: School of Engineering – Energy and Information, Hochschule für Technik und Wirtschaft Berlin, 10313 Berlin, Germany

Faculty of Electrical Engineering and Computer Science, Technical University Berlin, 10587 Berlin, Germany

Funding

Bundesministerium f?r Bildung und Forschung · Deutscher Akademischer Austauschdienst · Javna Agencija za Raziskovalno Dejavnost RS · Helmholtz-Gemeinschaft · Lietuvos Mokslo Taryba

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