Influence of Temperature, Pressure and Humidity on the Stabilities and Transitions Kinetics of the Various Polymorphs of FAPbI${}_3$

Francesco Cordero, Floriana Craciun, Francesco Trequattrini +4

The phase transitions between the various polymorphs of FAPbI${}_3$ (FAPI, FA = formamidinium CH(NH${}_2$)${}_2^{+}$) are studied by anelastic, dielectric and X--ray diffraction meas…