What happen to solar cell when light absorbed.?
Well, lets start at the basics: Solar cells are semiconductors. That means they are usually a material, that does not transmit electricity well, but can be made more conductive, allowing technicians to control precisely how conductive they are. Semiconductors are crystals, usually of Silicon (Si) atoms, which have 4 electrons, which they use for forming four crystal bonds between the atoms. But there are also other materials with similar properties in modern solar cells…this example works just simpler. ;o) Now, the first trick for producing semiconductors, is to pollute them with other atoms, this process is called (don’t laugh) “Doping”. This way, you can create two kinds of different layers: “Donor” layers have spots, where you have one electron “spare” by integrating the other atoms. Usually, without any other energy source of electrostatic field in the semiconductor, you have many electrons there traveling in this layer from donor atom to donor atom without having any effect. But
