Figure 6. Device performance of rGQDs and GQDs incorporated OPVs.
(A) Schematic illustration of the device with rGQDs in BHJ layer and GQDs in HTL (PEDOT:PSS), (B) J-V curves, (C) dark J-V curves and (D) IPCE of the devices with plain PEDOT:PSS and BHJ (black), PEDOT:PSS with GQDs (red), BHJ with rGQDs (blue) and GQDs and rGQDs incorporated PEDOT:PSS and BHJ (green). The concentration ratios of GQDs and rGQDs were 0.4 wt.% and 0.02 wt.% respectively.