Posts Tagged ‘crystalline silicon solar cells’
The Importance Of Solar Silicon In Photovoltaic Cells
March 2nd, 2010
Solar silicon is necessary in order for photovoltaic or solar cells to work. This means that light energy can be harnessed and then converted in to electricity or other types of power. This type of energy production is highly desirable as it is renewable and environmentally friendly.
Many homes will supplement their power with solar panels and new buildings tend to have solar panels designed into the power structure. You can save a lot of money on your electricity bills by incorporating solar power into your home or building. You also are eligible for substantial tax rebates by using a source of renewable energy.
High efficiency solar cells are those that convert the maximum amount of electricity from the light source. When using silicone the most efficient solar cells are monocrystalline. This type of cell provides and energy payback of 1 to 2 years so you will get your entire investment back quite quickly.
The best types of surfaces for high efficiency are monocrystalline silicon. In general you can expect to get your original investment back within one to two years.
Most solar cells will use a semiconductor with a silicon p-n junction. So a layer of n-type silicon is brought into contact with a layer or p-type silicon. This contact allows for the diffusion of the high electron side (the n layer which the photon hits) to the p-type which has a low concentration of electrons. This in turn creates an electric field which produces a drift current.
This solar cell works because there are two types of silicon layers that make a p-n junction. Basically an n layer of silicon which is the side that the light hits, is on top of a p layer which has a low electron concentration. When the light hits the n layer passes the electrons to the n layer making an electric field.
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