Solar cells are devices that can light from the sun directly into an electrical energy. Solar cells are also called the media to maximize the potential of energy derived from sunlight. Although used in generating electricity, the energy of the sun can also be maximized heat through solar thermal energy. Solar cells are often used by various companies to generate electrical energy.
When getting sun exposure in general of the solar cell can produce a dc voltage of 0.5 to 1 volt, and also short-circuit currents. Large voltages and currents are not enough untu various applications. So that in general a number of solar cells arranged in series to form a solar module. In general, solar modules consist of 28 to 36 and the total solar cell can produce a dc voltage of 12 Volts in standard light conditions. The solar modules can be combined in series and parallel manner to increase the voltage and current on the corresponding output power is required in certain applications. Then how the workings of the solar cells that can harness solar energy into electrical energy? Consider the review below!
HOW SOLAR CELLS
Conventional solar cells work by using the principle that such junction pn junction between p-type semiconductor and n-type. Semiconductors comes from bonding atoms have electrons as a constituent base. Each semiconductor has its own advantages such as n-type semiconductors that have excess electrons negative charge, whereas for p-type semiconductor has excess positive charge holes.
Condition of excess electrons and holes can occur by way mendoping material with dopant atoms. For example in obtaining a p-type silicon material, silicon should be doped with boron atoms, while the n-type silicon material, silicon should be doped by phosphorus atoms.
For the role of the pn junction is to form an electric field, so that the electron and hole can be extracted by contact material to produce an electric energy. Therefore, when the p-type semiconductor and n-type contacted, an excess of electrons will move from the n-type semiconductor toward the p-type. Thereby forming a positive pole on the n-type semiconductor, and vice versa negative pole on the p-type semiconductor.
Due to the electron and hole will form an electric field, when the solar light on the composition of the pn junction will push the electrons move from the semiconductor toward the negative contact. Subsequently used as electrical energy, and vice versa hole will move toward the positive contacts waiting for an electron.
That’s how the solar cells, which is a medium that can generate electrical current that comes from the sun. By utilizing solar cells that use energy sources derived from microorganisms millions of years ago can be reduced. This is very beneficial for the environment, because without polluting and safe.
Thus information about How to Work Technology Solar Cell, may be useful for you.