China’s perovskite-silicon solar cell retains 90% efficiency after 1,000 hours

Chinese researchers developed a peak-selective passivation strategy for textured silicon in perovskite-silicon tandem solar cells.

The device achieved 33.33% efficiency and a certified 32.89%, marking a major step toward higher-performance photovoltaics.

It retained about 90% of its performance after 1,000 hours, showing strong operational stability.

Because the method fits existing industrial production lines, it could accelerate commercial adoption of tandem solar cells.