Perovskite Solar Cells Yielding Reproducible Photovoltage of 1.20 V
Photovoltaic characteristics of the perovskite solar cells based on Cs5Pb and Cs5Pb.0.05GuaI films. (a) Current density versus voltage characteristics of perovskite solar cells. (b) Incident photon-to-current efficiency spectra as a function of the wavelength and the corresponding integrated . (c) J-V metrics for 22 devices using Cs5Pb and Cs5Pb⋅0.05GuaI films.