Single Crystalline silicon PV module

'The Photovoltaic effect is when two different (or differently doped) semiconducting materials (e.g. silicon, germanium), when in close contact with each other, generate an electrical current when exposed to sunlight. A single crystalline silicon PV module, using single crystalline silicon wafers, has highest conversion efficiency of commercial PV technologies, as well as high durability and reliability. A hybrid type PV module of single crystalline silicon and amorphous sillicon integrated by heterojuction is now commercialized. It has less decrease of efficiency under high temperature environment.