CITYSOLAR

Transparent solar cells in windows are already possible. But up to now, they have not been sufficiently effective in converting sunlight into electricity. The EU-funded CITYSOLAR project aims to change this by combining two photovoltaic technologies in a tandem configuration. Specifically, CITYSOLAR will develop multi-junction solar cells that are optimised to absorb different wavelengths of sunlight by bringing together new perovskite solar cells that have a high energy gap with organic solar cells that are free of fullerenes and have a low energy gap. This will pave the way for highly transparent solar cells that absorb infrared and ultraviolet light but not visible light, leading to a conversion efficiency of over 15%.

Duration: 1 December 2020 - 30 November 2023