Charge recombinations Charge transfer Charge-separation Conversion efficiency Energy dissipation Energy gap Fused ring Inorganics Narrow bandgap Open circuit voltage Open-circuit voltages Organic photovoltaics Organic solar cells Perovskite Perovskite solar cells Power conversion efficiencies Solar power generation Timing circuits Voltage loss Wide-band-gap charge recombination charge separation energy loss open-circuit voltage organic photovoltaics