LOW-METAL CONTENT ELECTROCONDUCTIVE PASTE COMPOSITION

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United States of America Patent

APP PUB NO 20130319496A1
SERIAL NO

13648724

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electroconductive paste for use in solar cell technology comprising a first silver particle that is less than one micron in size and having a surface area of greater than 2.4 m2/g, as well as glass frit and an organic vehicle. Another embodiment of the invention relates to an electroconductive paste for use in solar cell technology further comprising a second silver particle that is greater than one micron in size and having a surface area of less than 2 m2/g. According to another embodiment, the total silver content of the paste is less than about 83.5 wt. %. Another embodiment of the invention relates to a solar cell comprising a silicon wafer having at having a surface electrode comprising the electroconductive pastes according to the invention. Another embodiment of the invention relates to a solar cell module comprising electrically interconnected solar cells according to the invention. Yet another embodiment of the invention relates to a method of producing a solar cell by applying an electroconductive paste according to the invention to a silicon wafer and firing the wafer at an appropriate profile.

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Patent Owner(s)

Patent OwnerAddress
HERAEUS PRECIOUS METALS NORTH AMERICA CONSHOHOCKEN LLC24 UNION HILL ROAD WEST CONSHOHOCKEN PA 19428

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
KARPOWICH, Lindsey A Philadelphia, US 3 14
ZHANG, Weiming Blue Bell, US 58 225

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