Structure–property coupling in lead-free halides Rb <sub>3</sub> Sb <sub>2</sub> Br <sub>9</sub> and Rb <sub>3</sub> Sb <sub>2</sub> Br <sub>6</sub> I <sub>3</sub> obtained by mechanochemistry
Rb 3 Sb 2 X 9 (X = Br, I) halides show a temperature-driven phase transition from monoclinic ( P 2 1 / n ) to trigonal ( P 3̄ m 1). Distortion-mode analysis reveals octahedral rotations as primary drivers, with cation shifts and bond modulations stabilizing the low-symmetry phase.
Authors
- Federico Serrano‐Sánchez (ORCID: https://orcid.org/0000-0002-6882-225X)
- Carlos Alberto López (ORCID: https://orcid.org/0000-0002-5964-7103)
- Mateus M. Ferrer
- W. Chérif (ORCID: https://orcid.org/0000-0002-5897-0443)
- J. A. Alonso (ORCID: https://orcid.org/0000-0001-5329-1225)
- Javier Gainza (ORCID: https://orcid.org/0000-0002-1999-3116)
- João Elias F. S. Rodrigues (ORCID: https://orcid.org/0000-0002-9220-5809)
- Carlos Pecharromán (ORCID: https://orcid.org/0000-0002-5431-1002)
- Brenda Martinelli
- Romualdo Santos Silva Junior (ORCID: https://orcid.org/0000-0002-6749-5293)
- Yousra Chakroun
Institutions
- University of Sfax (TN)
- Universidade Federal de Pelotas (BR)
- European Synchrotron Radiation Facility (FR)
- Instituto de Ciencia de Materiales de Madrid (ES)
- Instituto de Química y Fisicoquímica Biológicas (AR)
- National University of San Luis (AR)
Publication Details
- Journal
- Journal of Materials Chemistry C
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5tc03197d
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Universidad Nacional de San Luis
- European Synchrotron Radiation Facility
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
- Agencia Nacional de Promoción Científica y Tecnológica
- Agencia Estatal de Investigación