A solar cell is a type of cell which can convert light from sunlight into electricity. The other term that commonly being used for solar cells is photovoltaic cells. Normally we have not seen only a solar cell stand itself alone, but a group of solar cells must stand and combine together in order to produce a large amount of electricity.These solar cells can be fabricated from a few different materials. The most traditional and common material used in the solar cells are amorphous, single crystal and multi crystalline materials. All of these materials are known as silicon. All of these materials also are in a group of semi-conductor. As semi-conductors being used in solar cells, it allow the light energy from the sun to be converted into electrical energy and then store the electrical energy and finally control the flow of that electrical generated energy.The energy flows through it is as a current and metal contacts attached at the top and bottom the solar cells can help the energy to be transferred in. Those top and bottom metal contacts will draw out the energy from the solar cell. Many cells joined together and connected by metal wiring will help the solar cells to create greater amount of usable electrical energy.This is actually a theoretical example and explanation on what goes on in a solar cell, and there are more actions and considerations that can be taken out when the cells is in reality. These all must have to be accounted when we try to construct our own solar panels.Unfortunately, the only energy absorbs by the material used in that solar is visible energy produced by the sun. The light that absorbs to the solar cells have different wavelength. In order for the cell to absorb the light a photon from the light wavelength need to be paired enough with the electron in the cell itself. The photon must have enough energy to ensure these pairs can occur. Without having enough energy the photon will never pairs with an electron in those solar cells.
Current research development is examining a few different ways and type materials that can be used to force the solar cells to absorb more energy then become cheaper. The demand on solar cells is increasing lead to further studies on how solar cells system works.