Anisotropic carrier diffusion in single MAPbI3 grains correlates to their twin domains

• DOI: 10.1039/d0ee01016b
• Publication Date: 2020-06-02T11:41:09Z
• Authors: Ilka M. Hermes; Andreas Best; Leonard Winkelmann; Julian Mars; Sarah M. Vorpahl; Markus Mezger; Liam Collins; Hans-Jürgen Butt; David S. Ginger; Kaloian Koynov; Stefan A. L. Weber
• Keywords: Charge carrier; Strain (injury)

The anisotropic charge carrier diffusion coupled to ferroelastic twin domains in methylammonium lead iodide opens possibilities for further optimization of perovskite solar cells and optoelectronic devices <italic>via</italic> strain engineering heat treatments.