| 초록 |
Organic photovoltaics(OPVs) have attractive advantages including solution-processability, flexibility and transparency. Semitransparent OPVs(ST-OPVs) are one of the most promising photovoltaic technologies applicable to building integrated photovoltaic(BIPV). Window-film-type ST-OPVs are simultaneously blocking UV and IR region and generating electrical energy. Herein, PEDOT:PSS with sequential post-treatment was utilized as top electrode with high conductivity. The optimized devices were semi-transparent with 10.9% of power conversion efficiency, average visible transmittance (AVT) of 26% and light utilization efficiency(LUE) of 2.83%. It was also suggested that the possibility of window films with the values of UV rejection, IR rejection, and total solar energy rejection (TSER) of 76.3%, 76.7%, and 62.3%, respectively. Therefore, window film type ST-OPVs will be very effective for both energy harvesting and replacing the commercialized window films. |
