TY  - CONF
AU  - Stroyuk, Oleksandr
AU  - Raievska, Oleksandra
AU  - Kinge, Sachin
AU  - Hauch, Jens
AU  - Brabec, Christoph
TI  - Innovative Approach to Bismuth-Antimony-Iodide Double Perovskite PV Absorbers via Anion Exchange and Solide-State Reactions42nd European Photovoltaic Solar Energy Conference and Exhibition
PB  - WIP-Munich
M1  - FZJ-2026-01177
SP  - 579 kB4 pages
PY  - 2025
AB  - 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.
T2  - 42nd European Photovoltaic Solar Energy Conference and Exhibition
CY  - 22 Sep 2025 - 26 Sep 2025, Bilbao (Spanien)
Y2  - 22 Sep 2025 - 26 Sep 2025
M2  - Bilbao, Spanien
KW  - Thin-Films and New Concepts (Other)
KW  - Perovskites (Other)
LB  - PUB:(DE-HGF)8
DO  - DOI:10.4229/EUPVSEC2025/2DO.8.3
UR  - https://juser.fz-juelich.de/record/1052820
ER  -