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Interconnected Photoelectrochemical Cell

  • US 20080223439A1
  • Filed: 02/18/2005
  • Published: 09/18/2008
  • Est. Priority Date: 02/19/2004
  • Status: Abandoned Application
First Claim
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1. A photoelectrode comprising:

  • a substrate that is transparent and insulating;

    a front contact layer comprising a transparent conducting layer deposited on the substrate as a front electrode (Electrode A) for a photovoltaic cell;

    at least one of single-junction semiconductor pn or pin layers, or multiple-junction stacked pin or pin layers, that generate photovoltage under illumination;

    a back contact layer which is electrically conductive to form a back Electrode B, which may be either a cathode or an anode but is opposite to the Electrode A;

    an insulating layer that covers portions of the back contact layer;

    a conducting layer that is electrically connected to the transparent conducting layer (Electrode A), the conducting layer being either anode or cathode depending on the polarity of the photovoltaic cell, but is opposite to Electrode B; and

    optionallyan oxygen evolution reaction layer; and

    further optionally, a hydrogen evolution reaction layer, adapted to cover all or portions of the anode and the cathode, respectively, and to protect the photovoltaic cell from chemical and electrochemical corrosion.

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