Table 2.

V_OC loss profile of PBDB-T:Y1- and PBDB-T:Y2-based OPV devices

Devices	Eg (eV)	$q{V}_{\mathrm{OC}}^{\mathrm{SQ}}$ (eV)	$q{V}_{\mathrm{OC}}^{\mathrm{rad}}$ (eV)	ΔE (eV)	ΔE1 $E_{\mathrm{gap}}-q{V}_{\mathrm{OC}}^{\mathrm{SQ}}$ (eV)	ΔE2 $q\Delta V_{\mathrm{OC}}^{\mathrm{rad},\mathrm{below}\mathrm{gap}}$ (eV)	ΔE3 $q\Delta V_{\mathrm{OC}}^{\mathrm{non}-\mathrm{rad}}$ (eV)
PBDB-T:Y1	1.44	1.17	1.12	0.57	0.27	0.05	0.25
PBDB-T:Y2	1.40	1.13	1.09	0.57	0.27	0.04	0.26

OPV organic photovoltaic