The core component of double-glass solar panels is the solar cell, which is typically made from silicon. Silicon is a semiconductor material that has properties that allow it to absorb photons (light particles) and convert them into electrical energy. When sunlight strikes the surface of a solar cell, it causes electrons within the silicon material to become excited and move around. This movement of electrons creates an electrical current, which can then be harnessed and used to power electrical devices.
“Passivated Emitter and Rear Contact” solar cells, known as PERC solar cells, are becoming more common today as an option for making solar panels. PERC solar cells are modified conventional cells that enable the cells to produce 6 to 12 percent more energy than conventional solar panels.