Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO22)
DOI: https://doi.org/10.29363/nanoge.nipho.2022.010
Publication date: 11th November 2021
Hybrid organic-inorganic perovskites remain one of the most promising semiconductor materials in photovoltaics, yet their instability under operating conditions obstructs their application.[1] To address this challenge, we rely on supramolecular tools to purposefully tailor noncovalent interactions with organic components that template hybrid perovskite frameworks, such as through π-based interactions and host-guest complexation, which has been uniquely assessed by solid-state NMR spectroscopy and crystallography.[2–4] In addition, we employ these strategies to form low-dimensional perovskite architectures with enhanced functionalities that further alter the stabilities of materials as well as their photovoltaic performances.[2,5] As a result, we have achieved perovskite solar cells with superior operational stabilities without compromising their performances,[2,3] which provides fundamental insights for a versatile strategy in advancing perovskite photovoltaics.
Reference:
[1] M. H. Futscher, J. V. Milić, Front. Energy Res. 2021, 9, 629074.
[2] M. A. Hope et al. J. Am. Chem. Soc. 2021, 143, 1529.
[3] H. Zhang et al. Nat. Commun. 2021, 12, 3383.
[4] P. Ferdowsi et al. J. Phys: Mater. 2021, 4, 042011.
[5] J. Milić, J. Mater. Chem. C 2021, 9, 11428.
This work was based on a collaboration of the co-authors listed in the references, mainly from the groups of M. Grätzel, L. Emsley, and U. Rothlisberger at EPFL, as well as others at the Adolphe Merkle Institute and abroad. The research has been supported by the Swiss National Science Foundation PRIMA grant no. 193174.
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