ITIC is a new OPV material,

In summary, a novel electron acceptor (ITIC) based on a

fused-ring core end-capped with INCN units has been designed

and synthesized. ITIC exhibited a strong and broad absorption

in the visible and even NIR regions, and appropriate

energy levels matched with low-bandgap donor polymers such

as PTB7-TH. Because of broad absorption, balanced charge

transport, good donor/acceptor miscibility and proper phaseseparation

sizes of the blended fi lm, PSCs based on PTB7-

TH:ITIC blended fi lms showed PCEs as high as 6.80%, which

is a new reported record for fullerene-free PSCs,  and even

higher than that (6.05%) of the control devices based on PTB7-

TH:PC 61 BM.