Solar cell and method for producing same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4419530
SERIAL NO

06347779

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of electrically isolating portions of a large surface area semiconductor body for various purposes such as the production of improved photovoltaic and semiconductor devices is disclosed herein. In the preferred embodiment, the photovoltaic devices are of the type which include a common, electrically conductive substrate layer, a semiconductor body deposited upon the substrate layer, and a transparent electrically conductive coating layer is deposited atop the amorphous body. The method includes the steps of dividing the semiconductor body into a plurality of electrically-isolated portions which may include a grid pattern, testing the electrical output of each of the isolated portions of the semiconductor body, connecting only those isolated portions providing satisfactory electrical output to an electrically conductive strip which provides an electrical contact from the semiconductor body, and providing an electrical contact on the substrate, whereby the overall efficiency of the photovoltaic or semiconductor device is improved. The improved solar cell includes a plurality of electrically isolated portions into which the semiconductor body thereof is divided, at least one electrically conductive strip, each isolated portion of the semiconductor body which provides satisfactory electrical output is electrically connected to the conductive strip to provide an electrical contact associated with the semiconductor body, an electrical contact associated with the substrate layer, and an upper, electrically-insulating, protective layer and a lower electrically-insulating layer encapsulate the solar cell. A plurality of such solar cells are electrically connected to form a solar cell panel. Other methods of utilizing electrically isolated portions of a semiconductor body include the production of small surface area semiconductor devices from larger surface area semiconductor devices and a process for improving the electrical output of those isolated portions of a semiconductor body which provide unsatisfactory electrical output.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
United Solar Systems CorporationTROY, MI42

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nath, Prem Troy, MI 69 3680

Cited Art Landscape

Patent Info (Count) # Cites Year
 
EASTMAN KODAK COMPANY (1)
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ATLANTIC RICHFIELD COMPANY (1)
* 4353161 Process for fabricating solar to electrical energy conversion units 7 1981
 
RCA CORPORATION A CORP. OF DE (1)
* 4272641 Tandem junction amorphous silicon solar cells 50 1980
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
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Other [Check patent profile for assignment information] (6)
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THE UNIVERSITY OF TOLEDO (9)
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United Solar Systems Corporation (8)
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The Standard Oil Company (1)
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FUNDACIO INSTITUT DE CIENCIES FOTONIQUES (1)
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* Cited By Examiner