Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Reexamination Certificate
2008-05-06
2008-05-06
Nguyen, Nam (Department: 1753)
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
C136S243000, C252S518100
Reexamination Certificate
active
07368657
ABSTRACT:
A paste composition for forming an electrically conductive layer on a p-type silicon semiconductor substrate comprises aluminum powder, an organic vehicle and powder of at least one inorganic compound selected from a group consisting of an oxide-based inorganic compound and a non-oxide-based inorganic compound. The oxide-based inorganic compound has a thermal expansion coefficient smaller than the thermal expansion coefficient of aluminum and a melting temperature, a softening temperature and a decomposition temperature each higher than the melting point of aluminum. The non-oxide-based inorganic compound has a thermal expansion coefficient smaller than the thermal expansion coefficient of aluminum and at least one of a melting temperature, a softening temperature or a decomposition temperature higher than the melting point of aluminum. A solar cell comprises an electrically conductive layer formed by applying the paste composition having the aforementioned characteristics onto a p-type silicon semiconductor substrate and thereafter firing the paste composition.
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Hioki Masaomi
Lai Gao-Chao
Machida Tomohiro
Tanaka Satoshi
Watsuji Takashi
Birch & Stewart Kolasch & Birch, LLP
Fick Anthony
Nguyen Nam
Sharp Kabushiki Kaisha
Toyo Aluminium Kabushiki Kaisha
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