Please describe in details how do the whole mechanisms work? How it is developed? What apparatus is required? How the solar panel is constructed and how it works? Explain me all questions by using 3d figures or images or video if available. I have no prior knowledge about solar electricity so; please guide me in the easiest way as much as possible; I want to make electricity for my home by using solar energy what should I do? How can I achieve or construct it myself?
More Pages:
- Solar Energy: Solar Or Geothermal Energy To Replace 100 Percent Of All Electricity In House? (7/21/2011)
- Solar Energy: What Type Of Electricity Can Produce From Solar Energy: Ac,dc Or Both? (6/23/2011)
- Solar Energy: Geothermal Energy Is Often The Great Hope Of Renewable Energy As It Can Be Continuously And Reliably Produced? (5/8/2011)
- Solar Turbines: How Do Solar Panels Work, And How It Can Generate Electricity? (9/1/2011)
- Solar Turbines: How Much Solar Energy Is Produced Every Hour? (8/25/2011)
{ 1 comment… read it below or add one }
When certain semiconducting materials, such as certain kinds of silicon, are exposed to sunlight, they release small amounts of electricity. This process is known as the photoelectric effect. The photoelectric effect refers to the emission, or ejection, of electrons from the surface of a metal in response to light. It is the basic physical process in which a solar electric or photovoltaic (PV) cell converts sunlight to electricity.
Sunlight is made up of photons, or particles of solar energy. Photons contain various amounts of energy, corresponding to the different wavelengths of the solar spectrum. When photons strike a PV cell, they may be reflected or absorbed, or they may pass right through. Only the absorbed photons generate electricity. When this happens, the energy of the photon is transferred to an electron in an atom of the PV cell (which is actually a semiconductor).
With its newfound energy, the electron escapes from its normal position in an atom of the semiconductor material and becomes part of the current in an electrical circuit. By leaving its position, the electron causes a hole to form. Special electrical properties of the PV cell—a built-in electric field—provide the voltage needed to drive the current through an external load (such as a light bulb).