The power conversion milestone marks the latest in a series of leaps forward for the technology, which as recently as 2009 had an efficiency of under 4%.
Charles Chee Surya's research group at Hong Kong PolyU calculates its perovskite PV technology will be able to flow power at a cost of HK$2.73/W ($0.35/W), compared with the current HK$3.9/W generation of existing silicon solar cells.
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