Compositions – Electrically conductive or emissive compositions – Free metal containing
Reexamination Certificate
2011-05-10
2011-05-10
Kopec, Mark (Department: 1766)
Compositions
Electrically conductive or emissive compositions
Free metal containing
C252S500000, C252S518100, C136S252000, C136S256000, C136S261000
Reexamination Certificate
active
07938988
ABSTRACT:
Provided are: a paste composition which is capable of keeping a desired function for a backside electrode of a solar cell and strengthening the bond between an aluminum electrode layer and a p type silicon semiconductor substrate even if glass frit as a substance giving a bad effect on the environment is not incorporated into the composition or the content of glass frit as a substance giving a bad effect on the environment therein is decreased; and a solar cell element provided with an electrode formed by use of the composition. The paste composition is a paste composition for forming an aluminum electrode layer (8) over a p type silicon semiconductor substrate (1), comprising aluminum powder, an organic vehicle, and a metal alkoxide. The solar cell element provided with the aluminum electrode layer (8) formed by applying the paste composition having the above-mentioned characteristic to the p type silicon semiconductor substrate (1) and then firing the resultant.
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Katoh Haruzo
Kikuchi Ken
Watsuji Takashi
Birch & Stewart Kolasch & Birch, LLP
Kopec Mark
Nguyen Khanh Tuan
Toyo Aluminium Kabushiki Kaisha
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