The grid you see on a solar panel is made up of three elements: fingers, busbars, and gaps. The fingers are ultra-thin, metallic lines — often made from silver or aluminum — spread across the surface of each solar cell. . The grid lines are essential for the panels to generate usable electricity, and without them, your panel would be little more than a glorified sunlight absorber. This. . A photovoltaic (PV) cell, commonly called a solar cell, is a nonmechanical device that converts sunlight directly into electricity. Sunlight is composed of photons, or particles of solar energy. These photons contain varying amounts of. . The electric power generated by PV modules goes through a series of transformations before it reaches the grid. Those transformations specifically include adjustments of current and voltage, DC-AC conversion, and also distribution of power between storage and transmission paths. On the base of the slab a small amount of a “p” dopant, typically boron, is difused.