Helical interfacial modulation for perovskite photovoltaics

Ghewa AlSabeh; Masaud Almalki; Sitthichok Kasemthaveechok; Marco A. Ruiz-Preciado; Hong Zhang; Nicolas Vanthuyne; Paul Zimmermann; Daphne M. Dekker; Felix Thomas Eickemeyer; Alexander Hinderhofer; Frank Schreiber; Shaik M. Zakeeruddin; Bruno Ehrler; Jeanne Crassous; Jovana V. Milić; Michael Grätzel

doi:10.1039/D4NA00027G

Helical interfacial modulation for perovskite photovoltaics†

Ghewa AlSabeh,

‡^ab Masaud Almalki,

‡^a Sitthichok Kasemthaveechok,

‡^c Marco A. Ruiz-Preciado,^a Hong Zhang,§^a Nicolas Vanthuyne,

^dg Paul Zimmermann,^e Daphne M. Dekker,^f Felix Thomas Eickemeyer,^a Alexander Hinderhofer,^e Frank Schreiber,

^e Shaik M. Zakeeruddin,^a Bruno Ehrler,

^f Jeanne Crassous,

*^c Jovana V. Milić

*^ab and Michael Grätzel*^a

Author affiliations

* Corresponding authors

^a Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
E-mail: michael.graetzel@epfl.ch

^b Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
E-mail: jovana.milic@unifr.ch

^c Univ. Rennes, CNRS, ISCR – UMR 6226, Rennes, France
E-mail: jeanne.crassous@univ-rennes1.fr

^d Aix Marseille University, CNRS Centrale Marseille, iSm2, Marseille, France

^e Institute of Applied Physics, University of Tübingen, 72076 Tübingen, Germany

^f AMOLF, Science Park 104, Amsterdam, The Netherlands

^g Aix-Marseille University, CNRS, Centrale Marseille, FSCM, Chiropole, Marseille, France

Abstract

Hybrid metal halide perovskites have demonstrated remarkable performances in modern photovoltaics, although their stabilities remain limited. We assess the capacity to advance their properties by relying on interfacial modulators featuring helical chirality based on P,M-(1-methylene-3-methyl-imidazolium)[6]helicene iodides. We investigate their characteristics, demonstrating comparable charge injection for enantiomers and the racemic mixture. Overall, they maintain the resulting photovoltaic performance while improving operational stability, challenging the role of helical chirality in the interfacial modulation of perovskite solar cells.

This article is part of the themed collections: Supramolecular Chirality in Self-organised Systems and Thin Films, Popular Advances and 2023 Journal of Materials Chemistry Lectureship winner: Jovana Milić

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Helical interfacial modulation for perovskite photovoltaics†

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