Experimental study demonstrates improved stability and efficiency in P3HT:PCBM solar cells via amphiphilic additive addition, suggesting a route toward durable organic photovoltaics.
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.
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Madalaimuthu et al. (2026) studied this question.
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