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Solar cell having interdigitated contacts and internal bypass diodes

  • US 4,933,022 A
  • Filed: 11/14/1988
  • Issued: 06/12/1990
  • Est. Priority Date: 11/14/1988
  • Status: Expired due to Fees
First Claim
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1. A solar cell structure comprisinga substrate of silicone, anda plurality of cells T formed in one surface of said substrate, each cell having alternate rows of p-type and n-type regions formed in said one surface, a first metal contact structure contacting all p-type regions and a second metal contact structure contacting all n-type regions, said first and second metal contact structures serially connecting a cell with adjacent cells, and a bypass diode formed in each cell each bypass diode comprising an n-type region contacting said first metal contact and a p-type region contacting said second metal contact, said bypass diodes being located in areas of cells not irradiated during normal operation of the cell.

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