... 5inch Tabbed Mono Crystalline Silicon Solar Cells for DIY Solar Panel Electrical Property 1, Solar Cells Structure2, Mechanical Date and Design ... %, Ag 3%Base Material: oxygen-free copper ( TU1 or CAD-110 or UNS C11000)Length: according to your requirement8.Quality Assurance ... solar cells, we also provide other raw material for solar panel, like pv ribbon wire (solder tabbing wire, bus wire), flux ...