Behind the scenes: insights into the structural properties of amide-based hole-transporting materials for lead-free perovskite solar cells

Florian Wolf; Maximilian T. Sirtl; Sebastian Klenk; Maximilian H. H. Wurzenberger; Melina Armer; Patrick Dörflinger; Patrick Ganswindt; Roman Guntermann; Vladimir Dyakonov; Thomas Bein

doi:10.1039/D2CE01512A

Behind the scenes: insights into the structural properties of amide-based hole-transporting materials for lead-free perovskite solar cells†

Florian Wolf,

‡^a Maximilian T. Sirtl,

‡^a Sebastian Klenk,‡^a Maximilian H. H. Wurzenberger,^a Melina Armer,

^b Patrick Dörflinger,^b Patrick Ganswindt,

^a Roman Guntermann,

^a Vladimir Dyakonov^b and Thomas Bein

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), 81377 Munich, Germany
E-mail: florian.wolf@cup.uni-muenchen.de, bein@lmu.de

^b Experimental Physics VI, Julius Maximilian University of Würzburg, 97074 Würzburg, Germany

Abstract

State-of-the-art perovskite solar cells often employ expensive organic hole transporting materials (HTM) such as spiro-OMeTAD, motivating the search for potential alternatives. Here we report single-crystal data of EDOT-amide-TPA as well as the first utilization of EDOT-amide-TPA as HTM for Cs₂AgBiBr₆ perovskite solar cells, outperforming spiro-OMeTAD. The dense packing of the EDOT-amide-TPA film improves the charge carrier extraction, increasing the J_SC and PCE.

CrystEngComm

Behind the scenes: insights into the structural properties of amide-based hole-transporting materials for lead-free perovskite solar cells†

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Behind the scenes: insights into the structural properties of amide-based hole-transporting materials for lead-free perovskite solar cells

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