Hybrid halide perovskites have become a prodigy for emerging semiconductor materials, driven mainly by their success as high-performance photovoltaics, with CH3NH3PbI3 leading the way and competing with state-of-the-art Si, CdTe or CIGS solar cells. As a result, three-dimensional hybrid halide perovskites have been studied intensely from a fundamental point of view as well as for photovoltaic and photonic applications.
My research focuses on the next generation of hybrid halide perovskites, specifically, two-dimensional hybrid halide double perovskites based on non-toxic metals like silver and bismuth. The variety of modulation through organic cations, inorganic layers and different morphologies of crystals and thin films offers intriguing optical and physical properties.
Maximilian T. Sirtl, Rik Hooijer, Melina Armer, Firouzeh G. Ebadi, Mahdi Mohammadi, Clément Maheu, Andreas Weis, Bas T. van Gorkom, Sebastian Häringer, René A. J. Janssen, Thomas Mayer, Vladimir Dyakonov, Wolfgang Tress, Thomas Bein, 2D/3D Hybrid Cs2AgBiBr6 Double Perovskite Solar Cells: Improved Energy Level Alignment for Higher Contact-Selectivity and Large Open Circuit Voltage Adv. Energy Mater. 2022 [link]
Maximilian T. Sirtl*, Melina Armer*, Lennart K. Reb, Rik Hooijer, Patrick Dörflinger, Manuel A. Scheel, Kristofer Tvingstedt, Nadja Glück, Pallavi Pandit, Stephan V. Roth, Peter Müller-Buschbaum, Vladimir Dyakonov, Thomas Bein, Optoelectronic Properties of Cs2AgBiBr6 Thin Films: The Influence of Precursor Stoichiometry ACS Appl. Energy Mater. 2020 [link]