Synergistic effects of buffer layer processing additives for enhanced hole carrier selectivity in inverted Organic Photovoltaics

By understanding the synergetic effects of the PEDOT:PSS additives on the performance of solution based inverted OPVs we proposed an optimised additive mixture as an effective route to further increase the hole selectivity of the inverted OPV structure. The proposed additive mixture of (Zonyl 0.5%:Dynol 0.2%) result to improved reliability and around 12% improvement on the PCE of inverted OPVs.