Photonics and Quantum Detection

Organic photovoltaics (OPV) is one of the new solar energy technologies, which offers various benefits including short energy payback time, lightweight, flexibility, and semitransparency. Recent development progress has attracted substantial scientific and commercial interest. Nevertheless, challenges include scalability and stability, necessitating larger efforts to improve the processability and long-term stability of solar cells. This study focuses on the device’s long-term stability, specifically on stabilizing the morphology of the photoactive layer. An amphiphilic molecule, p-toluene sulfonic acid (TSA), was used as an additive to improve both performance and stability by controlling the morphology of P3HT:PCBM solar cells.