A solar cell is a very common thing that is found almost in anywhere. From calculators to children’s toys, from the satellites to the torches, everything that can be operated with the help of the sunlight comes with the solar cell. But, what actually a solar cell is? You might have this question in mind as well.
The solar cells are known as PV cells or photovoltaic cells. Here the word photo means light and voltaic means electricity. So, together it means the cells which are able to convert light into electricity. The solar cells are able to transform the light obtained from sun to electricity.
The solar panel is constituted of a large number of PV cells connected together. The PV cells are connected together and they are placed in a frame and this module is able to create electricity from the sunlight. The larger the array of cells would be the more electricity it will be able to create. In many countries, people use the solar panels to generate electricity for their house. These solar panels are very large compared to the one you have in your calculator but the working mechanism is similar.
The photovoltaic cells are made of the semiconductors such as silicon and the silicon is commonly used in all the batteries around. When light from the sun strikes the cell, it absorbs a portion of the light within the semiconductor material and then this energy is transferred to the semiconductors. This transferred energy then causes the knocking of the electron lose and helps them to move freely. And, we already know when the electron moves freely, it generates electricity.
This is the main concept of the solar cells. These PV cells have electric field that forces the electrons that are free by the absorption of light to a certain direction.
There are three types of the solar cells. The first type is the monocrystalline cells, the second is the polycrystalline cells and the third one is the amorphous cells. These are the three basic types of solar cells.
The monocytalline cells are cut from the silicon ingot grown from one large crystal of the silicon. On the other hand, the polycrystalline cells are cut from an ingot that is made of a multiple number of small crystals. The third type, the amorphous or the thin cut solar cells are also a popular type of solar cell. You can find different types of monocrystalline solar panels here.
Each and every type of the solar cells has their own distinctive usage. You cannot use one in another’s place. The best thing about the solar cells is it helps us to converse electricity and protect nature from the adverse effect. So, if you are planning to get a solar panel in your house then, you are doing the right thing.