Introduction Solar power is obtained mainly by the use of solar cells. The photovoltaic (PV) effect is the basic physical process through which a PV cell converts sunlight into electricity. Photovoltaics, as the word implies (photo = light, voltaic = electricity), convert sunlight directly into electricity. It is one of the forms of solar cells, in which light falling on a two-layer semi-conductor device produces a photo voltage or potential difference between the layers. This voltage is …showed first 75 words of 1501 total…

…showed last 75 words of 1501 total…and help to reduce the endless extractions of natural resources such as coal to do the work. Biblography http://www.nrel.gov/research/pv/docs/pvpaper.html http://www.howstuffworks.com/solar-cell.htm http://www.eren.doe.gov/pv/pvmenu.cgi?site=pv&idx=1&body=aboutpv.html http://acre.murdoch.edu.au/refiles/pv/text.html McClory Paul, Alternative Energy, Wayland, Pgs 21-25, England, 1980 CSIRO, Research for Australia 2, Energy, Pgs 64-65, CSIRO, Victoria, 2000