Fig. 2
From: Enabling low voltage losses and high photocurrent in fullerene-free organic photovoltaics

Photovoltaic performance. a The J−V curves of PBDB-T:Y1 and :Y2 blend solar cells. b The EQE curves of PBDB-T:Y1 and :Y2 blend solar cells. c Statistical diagram of efficiency of PBDB-T:Y1 and :Y2. d Current−voltage parameters of PBDB-T:Y1 device certified (0.0548 cm2 device area) by Newport Corp. EQE electroluminescence quantum efficiency