Fig. 4: PV characteristics and stability test of 1 cm2 2 T perovskite/silicon tandems.
From: A binary 2D perovskite passivation for efficient and stable perovskite/silicon tandem solar cells
a Schematic of the monolithic tandem structure based on a double-side textured silicon heterojunction cell. b–e Statistics of VOC, JSC, FF, and PCE of the Ref and B-2D tandem solar cells. J-V curves (f) and SPO (g) of the champion B-2D tandem solar cell, including the performance parameters and a photograph of the tandem cell. h EQE spectra of the perovskite top cell and silicon bottom cell of the B-2D tandem device. R is reflectance. i Evolution of PV performance of the encapsulated B-2D tandem device when subjected to a damp-heat test at 85 ˚С and 85% relative humidity. j Long-term operation track of unencapsulated B-2D tandem device under full spectrum continual AM 1.5 G illumination in air (~25% RH) at a temperature of 25 ˚С.
