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Understanding solar cell band diagram

  1. Mar 11, 2018 #1
    Hi everyone, I have been studying the physics of solar cells for a long time. The only thing that I can not completely understand is the physical operation of solar cell based on band diagram.
    Can anyone briefly explain the movements of carriers from one electrode to the another based on band diagram?
    IMG_20180311_202159_438.jpg
    IMG_20180311_202157_156.jpg
     
  2. jcsd
  3. Mar 12, 2018 #2

    jedishrfu

    Staff: Mentor

  4. Mar 12, 2018 #3

    scottdave

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  5. Mar 13, 2018 #4
    The 'cell' you have included with your post is not a single cell, but is in fact a multi-junction solar cell. The InGaP cell up to the tunnel diode acts as one photovoltaic cell, and the GaAs cell after the tunnel diode acts as a second cell.
     
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