Solar cells today are mostly made of silicon, one of the most common elements on Earth. The crystalline silicon solar cell was one of the first types to be developed and it is still the most common type in use today. They do not pollute the atmosphere and they leave behind no harmful waste products. Photovoltaic cells work effectively even in cloudy weather and unlike solar heaters, are more efficient at low temperatures. They do …showed first 75 words of 1171 total…

…showed last 75 words of 1171 total…lved through mass production and new technological advances in semiconductors. Bibliography 1) Green, Martin Solar Cells, Operating Principles, Technology and System Applications. New Jersey, Prentice-Hall, 1989. pg 104-106 2) Hovel, Howard Solar Cells, Semiconductors and Semimetals. New York, Academic Press, 1990. pg 334-339 3) Newham, Michael ,"Photovoltaics, The Sunrise Industry", Solar Energy, October 1, 1989, pp 253-256 4) Pulfrey, Donald Photovoltaic Power Generation. Oxford, Van Norstrand Co., 1988. pg 56-61 5) Treble, Fredrick Generating Electricity from the Sun. New York, Pergamon Press, 1991. pg 192-195 ------------------------------------------------------------------------------