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A solar cell is created to do one paramount task.  That is the production of [[electricity]] through the absorption of photons.  When light, in this case radiant energy from the sun, strikes the cell, a certain portion of it is absorbed within the semiconductor material. The semiconductor material in this case is that of the gallium arsenide.  This means that the energy of the absorbed light is transferred to the semiconductor, in our case the gallium arsenide.  The energy excites electrons, knocking them loose or otherwise removing them from their previous bound state.  This allows them to flow freely.  Solar and photo voltaic cells also have one or more electric fields that act as a mediator.  This field forces electrons liberated by light absorption to flow in a certain direction.  This flow of electrons, like many others, is a current.  This current can be harnesssed by placing metal contacts on the top and bottom of the cell.  With these newly placed contacts the current can be drawn off to power just about any external application.
 
A solar cell is created to do one paramount task.  That is the production of [[electricity]] through the absorption of photons.  When light, in this case radiant energy from the sun, strikes the cell, a certain portion of it is absorbed within the semiconductor material. The semiconductor material in this case is that of the gallium arsenide.  This means that the energy of the absorbed light is transferred to the semiconductor, in our case the gallium arsenide.  The energy excites electrons, knocking them loose or otherwise removing them from their previous bound state.  This allows them to flow freely.  Solar and photo voltaic cells also have one or more electric fields that act as a mediator.  This field forces electrons liberated by light absorption to flow in a certain direction.  This flow of electrons, like many others, is a current.  This current can be harnesssed by placing metal contacts on the top and bottom of the cell.  With these newly placed contacts the current can be drawn off to power just about any external application.
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[[Image:EfieldSolarCell.jpg|thumb|Fig 1: is a diagram that shows the workings of a solar cell's electric field.  Note that the section labeled "A" is the n-type junction while the section labeled "B" is the p-type junction.  The black arrows in the diagram note the electric field in between the two junctions when external energy is introduced to the system.]]   
 
[[Image:EfieldSolarCell.jpg|thumb|Fig 1: is a diagram that shows the workings of a solar cell's electric field.  Note that the section labeled "A" is the n-type junction while the section labeled "B" is the p-type junction.  The black arrows in the diagram note the electric field in between the two junctions when external energy is introduced to the system.]]   
    
[[Image:SolarCellOperation.jpg|thumb|Fig 1: is a diagram that showcases how the current flows in a solar cell as rays of light or photons (the yellow arrows) strike the cell.  Again the section labeled "A" is the n-type junction while the section labeled "B" is a p-type junction.  The section labeled "C" is the load for the circuit.  The electrons will flow starting at point "B" to point "A" then through the load "C."  Then the electrons will complete the loop and return in a clockwise loop to point "B."]]
 
[[Image:SolarCellOperation.jpg|thumb|Fig 1: is a diagram that showcases how the current flows in a solar cell as rays of light or photons (the yellow arrows) strike the cell.  Again the section labeled "A" is the n-type junction while the section labeled "B" is a p-type junction.  The section labeled "C" is the load for the circuit.  The electrons will flow starting at point "B" to point "A" then through the load "C."  Then the electrons will complete the loop and return in a clockwise loop to point "B."]]
 
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=====N-Junctions=====
 
=====N-Junctions=====
 
An N-Junction, or negative junction, occurs in a solar cell when the material the cell is made of allows for electrons to break off their respective atom or compound.  The newly freed electrons flow over the area causing a generally negative charge.
 
An N-Junction, or negative junction, occurs in a solar cell when the material the cell is made of allows for electrons to break off their respective atom or compound.  The newly freed electrons flow over the area causing a generally negative charge.

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