New non-fullerene acceptor helps achieve 20.2% efficiency in organic solar cells

Materials and device performance. Credit: Jiang et al. (Nature Energy, 2024).

In recent years, engineers have introduced a wide range of photovoltaic (PV) solutions that could facilitate the sustainable generation of electricity worldwide. These include organic solar cells (OSCs), PV devices that use organic molecules or polymers to convert sunlight into electrical power.

These solar cells could have notable advantages, including high flexibility, lighter weight and lower fabrication costs. However, their power conversion efficiencies (PCEs) remain significantly lower than those of silicon-based solar cells.
Researchers at the Chinese Academy of Sciences and Beijing Normal University recently designed a new asymmetric non-fullerene …

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