Novel Materials and Processes for Perovskite-based Multijunction Photovoltaics

Ulrich W. Paetzold^a^,^b

^aKarlsruhe Institute of Technology, Institute of Microstructure Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

^bKarlsruhe Institute of Technology, Light Technology Institute, Engesserstrasse 13, 76131 Karlsruhe, Germany

Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe Spring Meeting 2022 (NSM22)

#PMSC22. Perovskite-based multijunction solar cells

Online, Spain, 2022 March 7th - 11th

Organizers: Stefaan De Wolf and Steve Albrecht

Invited Speaker, Ulrich W. Paetzold, presentation 083
DOI: https://doi.org/10.29363/nanoge.nsm.2022.083
Publication date: 7th February 2022

Perovskite-based multijunction photovoltaics are about to surpass power conversion efficiencies of 30% on a laboratory scale and thereby have irrevocably developed into one of the most promising next-generation photovoltaic technologies with enormous market potential. Unfolding this potential requires solving scientific and technological challenges related to high-efficiency device architectures, the development of stable perovskite materials, light management, and scalable fabrication processes of the perovskite top solar cell. In this contribution, our recent progress on novel passivation strategies using 2D/3D heterostructures, optimization of light management textures, and scalable fabrication processes (evaporation, lamination, and solution-based coating) for perovskite-based tandem photovoltaics will be presented. Prototype perovskite/Si and perovskite/CIGS tandem solar cells in 4-terminal architecture, as well as 2-terminal architecture, will demonstrate the maturity of these developments.

References:

[1] 2D/3D heterostructure for semitransparent Pperovskite solar cells with engineered bandgap enables efficiencies exceeding 25% in four‐terminal tandems with silicon and CIGS, S. Gharibzadeh, I. M. Hossain, P. Fassl, B. Abdollahi Nejand, T. Abzieher, M. Schultes, E. Ahlswede, P. Jackson, M. Powalla, S. Schäfer, M. Rienäcker, T. Wietler, R. Peibst, U. Lemmer, B. S. Richards, and U. W. Paetzold. Advanced Functional Materials 30(19), 19099196, (2020).

[2] Record open‐circuit voltage wide‐bandgap perovskite solar cells utilizing 2D/3D perovskite heterostructure, S. Gharibzadeh, B. Abdollahi Nejand, M. Jakoby, T. Abzieher, D. Hauschild, S. Moghadamzadeh, J. Schwenzer, P. Brenner, R. Schmager, L. Weinhardt, U. Lemmer, B. S. Richards, I. A. Howard, and U. W. Paetzold. Advanced Energy Materials 9(21), 1803699 (2019).

[3] Upscaling of perovskite solar modules: The synergy of fully evaporated layer fabrication and all-laser-scribed interconnections, D. B. Ritzer, T. Abzieher, A. Basibüyük, T. Feeney, F. Laufer, S. Ternes, B. S. Richards, S. Bergfeld, and U. W. Paetzold, Progress in photovoltaics – just accepted and published online (2021)

[4] From Groundwork to Efficient Solar Cells: On the Importance of the Substrate Material in Co‐Evaporated Perovskite Solar Cells, T. Abzieher, J. Schwenzer, S. Moghadamzadeh, F. Sutterluti, I. M. Hossain, M. Pfau, E. Lotter, M. Hetterich, B. S. Richards, U. Lemmer, M. Powalla, and U. W. Paetzold, Adv. Funct. Mater. 2104482, 2104482 (2021).

[5] Two birds with one stone: dual grain-boundary and interface passivation enables 22% efficient inverted methylammonium-free perovskite solar cells. Gharibzadeh, S. et al. Energy Environ. Sci. 14, 5875–5893 (2021).

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