Perovskite Tandem Cells Offer Circularity Potential

Researchers examine the potential for circularity in perovskite-based tandem photovoltaics in a new review. They note crystalline silicon solar panels will create roughly 160 million tonnes of waste by 2050 and face complex recycling hurdles. Metal-halide perovskite cells present simpler designs and lower-temperature processing, easing materials recovery.

The review identifies key challenges to perovskite circularity. These include finding alternatives to scarce raw materials and developing scalable recycling methods. Cost-effective ways to separate layers within the solar cells and safely contain lead also require further work.

Researchers suggest integrating materials science with economic and policy considerations. This holistic approach aims to improve both solar cell performance and sustainability. The team hopes this review will guide development toward responsible commercialization within the broader energy transition, but acknowledges more research is needed.