%0 Conference Paper
%A Stroyuk, Oleksandr
%A Raievska, Oleksandra
%A Kinge, Sachin
%A Hauch, Jens
%A Brabec, Christoph
%T Innovative Approach to Bismuth-Antimony-Iodide Double Perovskite PV Absorbers via Anion Exchange and Solide-State Reactions42nd European Photovoltaic Solar Energy Conference and Exhibition
%I WIP-Munich
%M FZJ-2026-01177
%P 579 kB4 pages
%D 2025
%X This work focuses on the development of advanced synthesis protocols for lead-free Cs2AgBi(Sb)Br6 perovskites and their conversion into lower-bandgap Cs2AgBi(Sb)I6 perovskite PV absorbers by using an innovative combination of mild anion exchange with a solid-state reaction between intermediate iodide derivatives. High-throughput robot-assisted experimentation is applied for the optimization of the synthesis conditions, targeting the highest yields of Cs2AgBi(Sb)I6 perovskites (ca. 90 mass%) with the lowest bandgap (1.78 eV). We provide new insights into the pathways, mechanisms, and dynamics of the formation of iodide double perovskites, reporting stable lead-free double iodide perovskites crystallized in a non-conventional tetragonal symmetry.
%B 42nd European Photovoltaic Solar Energy Conference and Exhibition
%C 22 Sep 2025 - 26 Sep 2025, Bilbao (Spanien)
Y2 22 Sep 2025 - 26 Sep 2025
M2 Bilbao, Spanien
%K Thin-Films and New Concepts (Other)
%K Perovskites (Other)
%F PUB:(DE-HGF)8
%9 Contribution to a conference proceedings
%R 10.4229/EUPVSEC2025/2DO.8.3
%U https://juser.fz-juelich.de/record/1052820