Researchers at Solliance and ECN have fabricated a 6 inch industrially processed c-Si cell with a perovskite top layer that is mechanically stacked using ECN’s MWT-SHJ (metal-wrap-through silicon heterojunction) design that has achieved conversion efficiencies of 26.3%. The work was publicised durin

Solar motion light is more and more popular in countryside,for garden,usually there is private garden before their villa or house,it's about 5-6 meters away from the electric wire,and it's not so beautiful and not safe if extend the electric wire from