A comparative study of the lattice dynamics of alkali titanium hexahalides
Abstract
The A 2 TiX 6 (A = Rb, Cs, X = F, Cl, Br, I) vacancy double perovskites hold promise as substitutes in solar cells for APbX 3 . Phonon calculations show that Rb 2 TiF 6 and Rb 2 TiI 6 are unstable in cubic form and may experience a phase transition.
Fields of Study & Subjects
Perovskite Materials and Applications
Thermal Expansion and Ionic Conductivity
Inorganic Chemistry and Materials
Publication details
- Journal / source
- Physical Chemistry Chemical Physics
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 28
- Issue
- 10
- Pages
- 6388–6395
- Publication date
- 1 January 2026
- Language
- EN