Translucent photovoltaic sheet material and panels
First Claim
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1. A light transmissive photovoltaic device comprising:
- an electrically conductive substrate forming a first electrode;
a plurality of layers of semiconductive material disposed on said substrate to form at least one photovoltaic cell;
an electrically conductive second electrode disposed on a top layer of said semiconductive material; and
a plurality of apertures passing through said semiconductive layers and said substrate to let a portion of incident light pass therethrough, each of said plurality of apertures having a diameter sufficiently small to cause diffraction of a substantial portion of said incident light passing through said device.
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Abstract
A light transmissive power generating photovoltaic device (14) includes a power generating film having a substrate (30), a plurality of semiconductor layers (30, 32, 34) and a transparent conductive oxide layer (37) with a grid adhered on the top surface thereof. Apertures (42) pass through the opaque semiconductive layers to let light pass through. The power generating film is laminated onto a transparent glass sheet (24, 26) on each side to form the photovoltaic device.
125 Citations
8 Claims
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1. A light transmissive photovoltaic device comprising:
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an electrically conductive substrate forming a first electrode; a plurality of layers of semiconductive material disposed on said substrate to form at least one photovoltaic cell; an electrically conductive second electrode disposed on a top layer of said semiconductive material; and a plurality of apertures passing through said semiconductive layers and said substrate to let a portion of incident light pass therethrough, each of said plurality of apertures having a diameter sufficiently small to cause diffraction of a substantial portion of said incident light passing through said device. - View Dependent Claims (2, 3, 4)
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5. A light transmissive power generating sheet material including:
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a transparent substrate comprising a first, light transmissive, electrically conductive electrode; a photovoltaic semiconductor layered film having a top surface and a bottom surface and constructed to produce a voltage differential between its bottom surface and its top surface, when its top surface is exposed to incident light; said bottom surface being supported by said substrate and in electrical contact with said first electrode; an optically transmissive second electrode disposed on said top surface of said semiconductor layered film; and a plurality of apertures extending through said semiconductor layered film to let said light pass therethrough, said apertures being sized small enough to diffract most of said incident light passing therethrough. - View Dependent Claims (6, 7, 8)
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Specification