Research / 2020 / Article / Fig 1

Research Article

Origin of High Efficiency and Long-Term Stability in Ionic Liquid Perovskite Photovoltaic

Figure 1

Photovoltaic performance and long-term stability of the PSCs. (a) The performance of the MAPbI3-based champion device. (b) EQE spectra and integrated of the MAPbI3-based champion device. (c) - curves under different scanning directions for MAAc PSCs. (d) The stabilized current density and power output of the MAPbI3 device for MAAc PSCs. (e) The performance of the champion device doped with FABr for MAAc PSCs. (f) The statistics of the PCEs of devices with and without FABr for MAAc PSCs. (g) Thermal stability of DMF and MAAc PSCs. The devices are maintained at 85°C condition in an N2-filled glovebox and measured regularly. (h) Operational stability of DMF and MAAc PSCs. MAAc and DMF PSCs are tracked at MPP (0.94 V and 0.90 V, respectively) under continuous 1-sun illumination in the glovebox.
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