Temperature Dependent Charge Carrier Dynamics in Formamidinium Lead Iodide Perovskite.

ABSTRACT: The fundamental opto-electronic properties of organic-inorganic hybrid perovskites are strongly affected by their structural parameters. These parameters are particularly critical in formamidinium lead iodide (FAPbI₃), in which its large structural disorder leads to a non-perovskite yellow phase that hinders its photovoltaic performance. A clear understanding of how the structural parameters affect the opto-electronic properties is currently lacking. We have studied the opto-electronic properties of FAPbI₃ using microwave conductivity measurements. We find that the mobility of FAPbI₃ increases at low temperature following a phonon scattering behavior. Unlike methylammonium lead iodide (MAPbI₃), there are no abrupt changes after the low-temperatur

SUBMITTER: Gelvez-Rueda MC 

PROVIDER: S-EPMC5661241 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature