Copper Plated Top Electrode for an Inverted Organic Photovoltaic

In this work, we have demonstrated improved performances of an inverted OPV by plating Cu on the top Ag electrode. The FF is increased by 35% by plating 200 nm of Cu on top of 30 nm of Ag. However, JSC is decreased by 6.5% and this reduction could be due to the interaction between copper plating solution and the photoactive layer of P3HT:PCBM. Despite the decrease of J
_SC
, the PCE increased by 25% thanks to the significant increase of FF.