Rotational Cation Dynamics in Metal Halide Perovskites: Effect on Phonons and Material PropertiesGallop, N. P., Selig, O., Giubertoni, G., Bakker, H. J., Rezus, Y. L. A., Frost, J. M., Jansen, T. L. C., Lovrincic, R. & Bakulin, A. A., 18-Oct-2018, In : JOURNAL OF PHYSICAL CHEMISTRY LETTERS. 9, 20, p. 5987-5997 21 p.
Research output: Contribution to journal › Article › Academic › peer-review
The dynamics of organic cations in metal halide hybrid perovskites (MHPs) have been investigated using numerous experimental and computational techniques because of their suspected effects on the properties of MHPs. In this Perspective, we summarize and reconcile key findings and present new data to synthesize a unified understanding of the dynamics of the cations. We conclude that theory and experiment collectively paint a relatively complete picture of rotational dynamics within MHPs. This picture is then used to discuss the consequences of structural dynamics for electron-phonon interactions and their effect on material properties by providing a brief account of key studies that correlate cation dynamics with the dynamics of the inorganic sublattice and overall device properties.
|Number of pages||21|
|Journal||JOURNAL OF PHYSICAL CHEMISTRY LETTERS|
|Publication status||Published - 18-Oct-2018|
- LEAD IODIDE PEROVSKITES, CURRENT-VOLTAGE HYSTERESIS, EXCITON BINDING-ENERGY, SOLID-STATE NMR, HYBRID PEROVSKITES, SOLAR-CELLS, ORGANIC CATION, CH3NH3PBI3 PEROVSKITE, ORGANOHALIDE PEROVSKITES, MOLECULAR-DYNAMICS