Novel method proposed to design high-efficiency guest components for ternary organic solar cells

https://techxplore.com/news/2024-04-method-high-efficiency-guest-components.html

"guest component introduced into host binary system... designed/ synthesized 3 asymmetrical non-fullerene acceptors with different electrostatic potential distributions, as guest acceptors in D18:N3 host system... large ESP difference between guest acceptor and host system leads to strong intermolecular interactions and high miscibility between them, improving blend film luminescent efficiency and electroluminescence quantum yield, reducing voltage loss, more effective charge transport... 18.93% PCE, 0.236 eV voltage loss"

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