On the application of the tolerance factor to inorganic and hybrid halide perovskites: a revised system
Transnational Press London · University College London · +1 more institution
Abstract
The tolerance factor is a widely used predictor of perovskite stability. The recent interest in hybrid perovskites for use as solar cell absorbers has lead to application of the tolerance factor to these materials as a way to explain and predict structure. Here we critically assess the suitability of the tolerance factor for halide perovskites. We show that the tolerance factor fails to accurately predict the stability of the 32 known inorganic iodide perovskites, and propose an alternative method. We introduce a revised set of ionic radii for cations that is anion dependent, this revision is necessary due to increased covalency in metal-halide bonds for heavier halides compared with the metal-oxide and…
Citation impact
- FWCI
- 42.59
- Percentile
- 100%
- References
- 49
Authors
5- WTWill Travis
Transnational Press London, University College London
- EGEmily Glover
Transnational Press London, University College London
- HBHugo Bronstein
Transnational Press London, University College London
- DODavid O. Scanlon
Diamond Light Source, Transnational Press London, University College London
- RGRobert G. PalgraveCorresponding
Transnational Press London, University College London
Topics & keywords
- Halide
- Ionic radius
- Perovskite (structure)
- Iodide
- Metal
- Inorganic chemistry
- Fluoride
- Ionic bonding