Why Is Crystalline Silicon Used In Solar Panels

Crystalline silicon c si is the crystalline forms of silicon either polycrystalline silicon poly si consisting of small crystals or monocrystalline silicon mono si a continuous crystal crystalline silicon is the dominant semiconducting material used in photovoltaic technology for the production of solar cells these cells are assembled into solar panels as part of a photovoltaic.

Why is crystalline silicon used in solar panels.

One of the reasons people tend to choose monocrystalline solar panels is because of how they look. It s an semiconductor material. Doping of silicon semiconductors for use in solar cells. About polycrystalline solar panel.

These panels are made of silicon. To make the cells of polycrystalline panel fragments of silicon are melted together to form the wafers. The colour of crystalline silicon solar cells is determined by the width of the antireflective coating a thin layer of silicon nitride that prevents reflection of solar energy from the cells. Doping is the formation of p type and n type semiconductors by the introduction of foreign atoms into the regular crystal lattice of silicon or germanium in order to change their electrical properties 3.

The colours we normally see in solar cells i e dark grey for single crystalline dark blue for multicrystalline are produced by the antireflective coating thickness that allows the highest efficiencies. Crystalline silicon pv cells have laboratory energy conversion efficiencies over 25 for single crystal cells and over 20 for multicrystalline cells. Silicon has some special chemical properties especially in its crystalline form. Wang buxuan zhang zhenming in energy resources and environment 1982.

Amorphous silicon solar panels are a powerful and emerging line of photovoltaic systems that differ from crystalline silicon cells in terms of their output structure and manufacture. Monocrystalline solar panels are the most popular solar panels used in rooftop solar installations today. Great attention has been paid to the manufacture and application of monocrystalline silicon cells which besides being used in space application have successfully been applied to navigation railway astronomy meteorology agriculture and animal husbandry and are now being expanded. The solar cells within monocrystalline panels are a single flat black color which makes them popular among homeowners.

As mentioned above electricity is generated when free electrons are directed to carry a current within the cell s electric field 2. Crystalline silicon pv cells are the most common solar cells used in commercially available solar panels representing more than 85 of world pv cell market sales in 2011. Because there are many crystals in each cell. Crystalline silicon c si solar cells are currently the most common solar cells in use mainly because c si is stable it delivers efficiencies in the range of 15 to 25 it relies on established.

Polycrystalline solar panel are also known as poly solar panel multi crystalline or many crystal silicon panel.