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Polycrystalline thin film CdS/CdTe photovoltaic cell

  • US 4,207,119 A
  • Filed: 06/02/1978
  • Issued: 06/10/1980
  • Est. Priority Date: 06/02/1978
  • Status: Expired due to Term
First Claim
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1. In a photovoltaic cell comprisingfirst and second contiguous crystalline layers containing, respectively, p-type cadmium telluride and n-type cadmium sulfide, and electrodes in operative, low-impedance contact with at least part of said layers,the improvement wherein both said cadmium telluride and said cadmium sulfide are polycrystalline, and together said layers contain oxygen atoms in an amount that is effective to produce a cell having a conversion efficiency that is enhanced over the conversion efficiency of a cell that is produced without said oxygen atoms present.

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