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== First edits == | |||
A PV cell is made up of silicon, boron and phosphorus '''that is just an example'''. The silicon is a semi-conductive element that gets "excited" when struck by sunlight. There are no moving parts, merely reactions, which produce an '''internally effected''' electric voltage and '''externally effected''' current that is carried through wires within the cell to an electrical circuit. The boron and phosphorus are added to the outside '''doped (internal not external)''' of the silicon to act as positive and negative charges'''to create an abundance of holes or electrons. These doped layers, while alone are electrically neutral, create a voltage difference in the depletion zone as the holes and electrons migrate across the contact surface.''' | |||
Revision as of 07:10, 21 June 2006
First edits
A PV cell is made up of silicon, boron and phosphorus that is just an example. The silicon is a semi-conductive element that gets "excited" when struck by sunlight. There are no moving parts, merely reactions, which produce an internally effected electric voltage and externally effected current that is carried through wires within the cell to an electrical circuit. The boron and phosphorus are added to the outside doped (internal not external) of the silicon to act as positive and negative chargesto create an abundance of holes or electrons. These doped layers, while alone are electrically neutral, create a voltage difference in the depletion zone as the holes and electrons migrate across the contact surface.