Research into 'miracle material' perovskite in the past decade is now bearing fruit with more labs crossing the 30 percent barrier for solar cells.
with other renewable energy approaches, such as hydel power to tide over the intermittency issues.
However, researchers have been experimenting with various materials to overcome this limit and have found some success with perovskites. Silicon, on the other hand, absorbs red light. By using these two materials in tandem, it's possible to boost the total light absorbed by the panel and cross the 30 percent energy conversion barrier.Perovskite is usually placed on top of the silicon layer, and these types of solar cells are referred to as perovskite-silicon, or simply 'tandem cells'.While these were the first few attempts in this direction, they have now become regular in research circles.
In real-life situations, tandem solar cells would also convert smaller amounts of incident energy. However, it would still be higher than those of silicon-only cells.The solar industry is racing to adopt tandem cells into their production cycles. The bottleneck, though, is the small size of tandem cells, typically 1 cm x 1 cm in size, while silicon cells on commercial solar panels measure 15 cm x 15 cm .
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