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Perovskite is a crystalline compound that can be used as a semiconductor in solar cells as an alternative to silicon. It is easier, cheaper, and more sustainable to manufacture, and it is transparent and flexible, making it easier to integrate into the landscape. A combination solar cell consisting of silicon and perovskite developed by the Netherlands Organization for Applied Scientific Research, TU Eindhoven, and TU Delft broke the 30% energy-efficiency barrier for the first time last year, surpassing the 29.4% upper limit of pure silicon solar cells. The two materials absorb different wavelengths of light: perovskite focuses on the green and blue spectrum, silicon on the red and infrared. Perovskite cells are already more easily manufactured than silicon cells, and researchers have continued to make further advances. Dartmouth engineers increased the speed of production. In Australia, the ARC Centre of Excellence in Exciton Science developed a simpler process using nanoparticle ink that can be made with microwaves. And at UCLA, a scientist found that a slight adjustment can make the cells more durable. At Princeton, researchers developed a perovskite cell that is five times more durable than its predecessors and has a lifetime of five years.

Perovskite cells

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Next Generation PV