Two new nonfused ring electron acceptors were synthesized, showing a unique A-D-A (acceptor-donor-acceptor) structure and demonstrating significant absorption properties in the range of 540 nm to 700 nm.
Their fluorescence occurs in the near-IR region, with lifetimes between 75-410 ps, and electrochemical measurements provide insights into their energy levels (HOMO and LUMO).
The nonfused NFAs were incorporated into photovoltaic cells, achieving impressive power conversion efficiencies of 10.17% and 14.09%, indicating their potential for simpler applications in organic solar technology.