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=====Greater Efficiency=====
 
=====Greater Efficiency=====
One type of future development focuses on the development of cells that convert increased levels of the incoming photons to electricity.  These would take less incoming energy to begin releasing electrons and would also capture more of their specific wavelength of the light spectrum.  There is currently a lot of research on going in this field dealing with making the light rays diffract to increase absorption rates.  Normally the rays will reflect of the backing material and travel out of the cell.  By creating a lower angle of exit more energy can be absorbed by the cell.      
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One type of future development focuses on the development of cells that convert increased levels of the incoming photons to electricity.  These would take less incoming energy to begin releasing electrons and would also capture more of their specific wavelength of the light spectrum.  There is currently a lot of research on going in this field dealing with making the light rays diffract to increase absorption rates.  Normally the rays will reflect of the backing material and travel out of the cell.  By creating a lower angle of exit more energy can be absorbed by the cell.
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Image:SolarCellLightPath.jpg|Fig 1: is a diagram of how light (the yellow line) enters the solar cell.  It first passes through "A" (the blue region) which is the anti-reflective layer of the cell.  The sunlight then travels through, "B," (the green layer) the material the cell is made of, e.g. silicon, gallium arsenide, etc.  Then the rays travel the the backing material, "C," (the gray region) which is normally made of aluminum.  At this point the photons which remain unabsorbed are reflected off of the backing nd ravel at an angle back out of the cell through both "A" and "B."   
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|Fig 2:     
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=====Greater Wavelength Capture=====
 
=====Greater Wavelength Capture=====

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