Novel Low-Crystallinity Guest Acceptor Boosts Efficiency of Organic Solar Cells
A research group led by Prof. GE Ziyi at the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences (CAS), has developed a low-crystallinity guest acceptor D-IDT via tin-free direct C–H activation as a third component of the binary organic solar cells (OSCs), achieving a highly stable OSC with the power conversion efficiency (PCE) up to 19.92 percent.