The solar cell, whose energy is generated from light wavelength, is a slim photo electricity semi-conductor chip making use of sunlight. Once exposed to sunlight, it’ll output voltage and current instantly. This cell is short for solar cell or sun cell or solar chip. Silicon is existing common raw material and it’s composed of single crystal silicon, multi crystal silicon and non-crystal silicon in the market. Single crystal and non-crystal silicon is mostly used now. The reason is that single crystal silicon is most efficient while non-crystal silicon is cheapest and no need to seal, unlike multi crystal silicon needing cutting and complicated sub-process.