Fig. 1: Wide bandgap perovskite single-junction, narrow bandgap perovskite single-junction and 2T all-perovskite tandem PSCs.
From: Unveiling the nexus between irradiation and phase reconstruction in tin-lead perovskite solar cells
a Typical photocurrent density-voltage (J–V) curves of single-junction wide bandgap perovskite, single-junction narrow bandgap perovskite, and 2T all-perovskite tandem solar cells. b Irradiation/air stability tests for unencapsulated single-junction wide bandgap perovskite, single-junction narrow bandgap perovskite, and 2T all-perovskite tandem solar cells. c External quantum efficiency spectra of a single-junction narrow bandgap perovskite solar cell under irradiation/air exposure. d Absorption spectra of a narrow bandgap perovskite thin film under irradiation/air exposure.
