Pietro Caprioglio - Voc and Jsc loss management in inverted wide-gap perovskite pin solar cells

Relevant papers:
https://onlinelibrary.wiley.com/doi/f...
https://pubs.rsc.org/en/content/artic...
https://pubs.rsc.org/en/content/artic...

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Talk by Dr. Pietro Caprioglio, currently a postdoc in the Snaith’s group at the University of Oxford (UK) on March 23th 2022
Abstract:
We couple a theoretical and experimental approach to understand and reduce the energy losses of wide bandgap Br-rich perovskite pin devices at open-circuit voltage (VOC) and short-circuit current (JSC) conditions. We demonstrate that modifying the perovskite surface with larger cations eliminates the VOC losses and, concurrently, the optimization of different bottom hole-transport layers minimizes the JSC losses. The resulting optimized devices show VOCs up to 1.29 V, fill factors above 82% and JSCs up to 17 mA/cm2.