Using Aromatic-Bridge-Tuned Dimer Acceptors to Harmonize Photoluminescence Quantum Yield and Crystallinity for Organic Solar Cells Exceeding 21% Efficiency.
Suppressing non-radiative energy loss (ΔE3) by enhancing the photoluminescence quantum yield (PLQY) of active-layer materials, particularly the acceptor component, is important for achieving high-performance organic solar cells (OSCs). A key challenge is how to design acceptor materials that attain high PLQY while pres...