Annealing effects on high-performance CH3NH3PbI3 perovskite solar cells prepared by solution-process.

This work studies annealing effects of the CH 3 NH 3 PbI 3 perovskite film for solar cell applications by time-resolved photoluminescence (TR-PL) spectra. The different thermal annealing temperatures process influences the quality and exciton lifetime of the CH 3 NH 3 PbI 3 perovskite film and importantly the device performance. The CH 3 NH 3 PbI 3 perovskite film of the optimal thermal annealing temperatures (100 °C) would significantly extended exciton lifetime and yield a higher open-circuit voltage, with short-circuit current density ( J SC ) = 21.58 mA/cm 2 , open-circuit voltage ( V OC ) = 0.84 V, fill factor (FF) = 61.4%, and η = 11.12%, respectively. [ABSTRACT FROM AUTHOR]