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Back junction photovoltaic solar cell

  • US 4,667,060 A
  • Filed: 05/28/1985
  • Issued: 05/19/1987
  • Est. Priority Date: 05/28/1985
  • Status: Expired due to Term
First Claim
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1. A solar cell comprising:

  • (a) a semiconductor wafer having a front surface and a back surface; and

    (b) a p-n junction provided at said back surface thereof;

    (c) said front surface provided with a metallic front contact and being lightly doped to reduce contact resistance at the interface between said metallic front contact and said semiconductor wafer;

    (d) said p-n junction at said back surface being patterned;

    (e) said solar cell having a conversion efficiency of at least 15% over an input intensity range from about one sun to about 1,000 suns.

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