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Solar cell

  • US 4,828,628 A
  • Filed: 06/10/1987
  • Issued: 05/09/1989
  • Est. Priority Date: 10/11/1985
  • Status: Expired due to Fees
First Claim
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1. A solar cell comprisinga substrate layer of semiconductor material, in which energy from a radiation source generates minority and majority charge carriers, the substrate layer having a first surface adapted to face toward said radiation source and a second surface adapted to face away from said radiation source;

  • a plurality of spaced apart ohmic contacts electrically coupled to one another and positioned directly on the first surface for collecting majority carriers;

    a passivation layer covering the ohmic contacts and the spaces therebetween; and

    means for providing an electrical field separating the minority and majority charge carriers in the region of the second surface, so that the majority charge carriers diffuse to the ohmic contacts and are collected by them.

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