An Impedance Study of the Density of States Distribution inBlends of PM6:Y6 in Relation to Barrierless Dissociation of CT States

In an endeavor to understand why the dissociation of charge-transfer (CT)states in a PM6:Y6 solar-cell is not a thermally activated process,measurements of energy-resolved impedance as well as of intrinsicphotoconduction are employed. This study determines the density of statesdistributions of the pertinent HOMO and LUMO states and obtains aCoulomb binding energy (Eb,CT) of ≈150 meV. This […]