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solar cell - which allows light to pass while it protects...

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Amanda Jefferies Ms. Salviander Physics PreLab 7 Solar Cell A solar cell is a device used to convert solar energy into electricity by the photovoltaic effect which was discovered by Albert Einstein. Photovoltaic simply put is electricity given light. Solar cells have many applications. Individual cells are used for powering small devices such as electronic calculators , electronic solar cars, etc. Photovoltaic arrays generate a form of renewable electricity . There are a wide range of different devices which use sunlight to generate power. In a solar cell there are two layers of silicon . Both are lightly mixed with a certain element. Usually, one side is mixed with boron and the other with arsenic . Photovoltaic modules often have a sheet of glass on the front or “sun up” side
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Unformatted text preview: which allows light to pass while it protects the semiconductor wafers from weather elements such as rain , hail , etc. Solar cell modules are usually connected in series which creates more voltage . If the solar cell modules were connected in parallel they would just yield a higher current. Modules are either interconnected in series, parallel, or both, to create an array with the desired voltage and current. In the cell, the light pumps electrons out one side of the cell, through the circuit, and back to the other side, energizing any electrical devices found along the way.The power output of a solar array is measured in watts or kilowatts . References: • www.howstuffworks.com • www.wisegeek.com • www.wikipedia.org...
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