A research team has developed an innovative parameter, FoMLUE, to evaluate the potential of photoactive materials for semi-transparent organic photovoltaics (ST-OPVs), paving the way for their widespread commercial applications. A paper reporting the research, "Semitransparent organic photovoltaics with wide geographical adaptability as sustainable smart windows ," has been published in Nature Communications . Transparent solar cells can be integrated into windows, screens a