Publication date: 14th September 2021
Perovskite solar cells (PSCs) and Organic solar cells (OSCs) have seen enormous development recently. Tandem photovoltaics is a constructive way to overcome the Shockley-Quesisser (SQ) limit and thermalization losses to elevate the photovoltaic performance. PSCs and OSCs both have advantage of simple and cost-effective solution-processed fabrication which makes them an ideal candidate for tandem solar cells. OSCs are promising low-bandgap bottom cells compared to Sn based low-bandgap PSCs. We have proposed an acetamidinium-substituted methylammonium lead iodide as top wide-bandgap PSC which improves the photovoltaic performance in comparison to methylammonium lead iodide perovskite absorber and PM6:Y6 based bottom low-bandgap OSC for perovskite/organic tandem photovoltaics.
This work was supported by Indo-UK Strategic University Network for Revolutionizing Indian Solar Energy (SUNRISE) program. We would also like to acknowledge the support of National Nano Fabrication Center (NNfC) and Micro-Nano Characterization Facility (MNCF) for providing fabrication and characterization facilities at CeNSE. NNfC and MNCF are funded by Ministry of Electronics and Information Technology, Government of India.
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