Sustainable and Circular Management of Perovskite SolarCells via Green Recycling of Electron Transport Layer-CoatedTransparent Conductive Oxide

Larini, V., Ding, C., Faini, F., Pica, G., Bruni, G., Pancini, L., Cavalli, S., Manzi, M., Degani, M., Pallotta, R., De Bastiani, M., Ma, C.-Q., Grancini, G

Adv. Funct. Mater. 2023, 2306040.

https://doi.org/10.1002/adfm.202306040

Transparent conductive oxide (TCO)-coated glasses are a costly and environmentally impactful part of perovskite solar cells (PSCs), accounting for 56% of their total cost and 96% of their carbon footprint. Recycling TCO glasses from old PSC modules can reduce both their cost and energy payback time. In this study, tin oxide (SnO2)-coated indium tin oxide glasses are refurbished using eco-friendly dimethyl sulfoxide as a solvent. The reclaimed substrates are used to create new-generation PSCs with the same high efficiency of 22.6%, and even higher average efficiency, thanks to surface modifications and trap passivation on the SnO2/perovskite interface.

How Litos Lite was used

Stability measurements were conducted by coupling a WavelabsSINUS-70 solar simulator with a Fluxim Litos Lite module and perform-ing maximum power point tracking for 1000 h under an N2atmosphere at1 sun illumination, employing a shadow mask of 1.25 mm2active area.