Researchers have developed a new approach to improve the efficiency and stability of perovskite solar cells, a next-generation photovoltaic technology that is being studied as an alternative to conventional silicon-based cells.
Published online on July 25, 2026, in the Chemical Engineering Journal, the study used computer-based modelling, known as density functional theory (DFT), to screen different chemical additives before testing them in solar cells. The aim was to identify materials that could reduce defects in the perovskite layer and improve its stability.
The researchers identified 2-amino-2-thiazoline (AMTZ) as a promising additive. When incorporated into the perovskite solar cell, the material helped improve the quality of the perovskite layer and reduce defects that can affect cell performance.
The resulting solar cell achieved a power conversion efficiency of 25.47%. The researchers also found that the additive helped reduce iodide-ion movement inside the perovskite material. Such ion migration is one of the factors that can contribute to performance losses and degradation in perovskite solar cells.
The cell also showed encouraging stability. During continuous operation at its maximum power point, it retained 91.1% of its initial efficiency after 1,000 hours.
The study highlights how combining computer modelling with laboratory testing could help researchers identify useful materials faster, reducing the need to test large numbers of additives through trial and error.
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