Perovskite solar cell stable for over a year
Mohammad Khaja Nazeeruddin at EPFL worked with Michael Grätzel and neighbouring Swiss perovskite panel maker Solaronix on a 2D/3D hybrid perovskite solar cell that combines the enhanced stability of 2D perovskites with 3D structures. These absorb light across the entire visible spectrum and transport electrical charges.
The 2D/3D perovskite yields efficiencies of 12.9% for a carbon-based architecture that has been developed at Solaronix and 14.6% for a standard mesoporous solar cell.
The team built 10×10 cm2 solar panels using a fully printable industrial-scale process at Solaronix. The resulting solar cells have now delivered a constant 11.2% efficiency for more than 10,000 hours, while showing zero loss in performance as measured under standard conditions.
The researchers say this reliability means perovskite solar cells can move into full commercial production.
The work is published in Nature Communications this week