Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.370
Publication date: 16th December 2024
The expansion of the discovered material space of MHPs has recently moved towards the investigation of lead-free systems in order to overcome the concerns related to Pb-toxicity. While effective alternatives for PV applications rely mostly on tin-based compositions, several other phases containing different metals such as Bi, Sb, Cu, and Ge have been discovered and investigated.In many cases, such perovskites result ill-suited for PV devices but possess very appealing optoelectronic properties, which can be exploited in other applications. Among these systems, bismuth- and antimony-based perovskite derivatives of general formula Cs3M2X9 (M = Bi, Sb; X = Br, I) have shown strong technological potential, in particular in the area of photocatalysis (both for solar fuel generation and organic synthesis) and photodetection. In this contribution we will present our recent results in the synthesis of powdered, nanocrystalline and thin film based on Bi and Sb metal halides employing sustainable and scalable approaches. The prepared phases, where properties modulation has been achieved by alloying Bi/Sb, the halide site, as well as the A-site cation, were employied in different applicative fields ranging from detection, photocatalysis and non-linear optics [1-3].
L.M. acknowledges support from the Ministero dell’Università e della Ricerca (MUR) and the University of Pavia through the program “Dipartimenti di Eccellenza 2023–2027. We acknowledge support from the Italian Ministry of Research under the PRIN 2022 grant no. 2022F2K7J5 with title “Two-dimensional chiral hybrid organic–inorganic perovskites for chiroptoelectronics” PE 3 funded by PNRR Mission 4 Istruzione e Ricerca - Component C2 - Investimento 1.1, Fondo per il Programma Nazionale di Ricerca e Progetti di Rilevante Interesse Nazionale PRIN 2022 - CUP B53D23004130006
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