Table 1.

Optical and electrochemical properties of the polymer acceptors

Polymer acceptor	λ max,sol [nm]	λ max,film [nm]	λ onset,film [nm]	E g a) [eV]	HOMO b) [eV]	LUMO b) [eV]
PYF‐T‐o	812	829	893	1.39	−5.62	−3.79
PYF‐V‐o	830	847	908	1.37	−5.64	−3.86
PYF‐TT‐o	798	811	891	1.39	−5.64	−3.80
PYF‐DT‐o	773	803	887	1.40	−5.68	−3.78

^a) Calculated from the absorption onset of the films

^b) Estimated from the onsets of the CV curves.