Perovskite solar cell with self-assembled organic electron transport layer achieves 21.5% efficiency

Developed by scientists in Saudia Arabia, the device is reportedly the most efficient perovskite solar cell ever reported to date with an organic electron transporting layer. The cell achieved an open-circuit voltage of 1. 13 V, a short-circuit current density of 24. 7 mA cm2, and a fill factor of 77%A group of researchers led by Saudi Arabia's King Abdullah University of Science and Technology (KAUST) has fabricated a perovskite solar cell based on an organic electron transport layer (ETL) using self-assembled monolayer (SAM) molecules containing phosphonic acid as an anchoring group. "All self-assembled ...

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