Monocrystalline or polycrystalline silicon solar cells are metallized with thin rectangular-shape strips printed on front and rear of a solar cell. These front and rear contact strips are referred to as busbars, bus bars, or bus-bar.
Perpendicular to the busbars are the metallic and super-thin grid fingers which function as collector of current, also called contact fingers which are connected by the busbar.
The fingers collect the PV generation current and transport it to the busbars. Tab wires are soldered to the busbars to connect a string of cells and thus to collect the electric current of one cell string.
2-Busbar
125mm solar cell patterned with 2 busbars
3-Busbar
156mm solar cell patterned with 3 busbars
4-Busbar
156mm solar cell patterned with 4 busbars
5-Busbar
156mm solar cell patterned with 5 busbars
9-Busbar
Bifacial 166mm solar cell patterned with 9 busbars
10-Busbar
Bifacial 182mm solar cell patterned with 10 busbars
12-Busbar
Bifacial 210mm solar cell patterned with 12 busbars
