1. Researchers at the Chinese Academy of Sciences and Beijing Normal University have developed a new non-fullerene acceptor that improves the efficiency of organic solar cells (OSCs) to 20.2%. 2. This material aims to reduce non-radiative energy losses and promote efficient charge generation and transfer, with a structure that minimizes energy loss and charge recombination. 3. The development could contribute to more sustainable and cost-effective solar energy solutions, although it still does not match the efficiencies of silicon-based solar cells.