Fig. 2
From: Ba-induced phase segregation and band gap reduction in mixed-halide inorganic perovskite solar cells
Photovoltaic performance of PSCs. a J–V performance of CsPb1−xBaxI2Br (x = 0 to 0.4) based inorganic PSCs. b SPO and steady-state JSC of the CsPb0.8Ba0.2I2Br-based PSCs. c IPCE and integrated JSC of the CsPb0.8Ba0.2I2Br-based PSCs
