Conductive paste, method for producing same, and method for producing solar cell
AssigneeDowa Electronics Materials Co., Ltd.
InventorsKenichi Harigae, Hiroshi Kamiga, Noriaki Nogami
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Abstract
A conductive paste including: a conductive powder containing silver; an indium powder; a silver-tellurium-coated glass powder; a solvent; and an organic binder, wherein the silver-tellurium-coated glass powder is a silver-tellurium-coated glass powder including a tellurium-based glass powder containing tellurium in an amount of 20% by mass or more, and a coating layer on a surface of the tellurium-based glass powder, the coating layer containing silver and tellurium as a main component.
Claims5
A conductive paste comprising:
- a conductive powder containing silver;
- an indium powder;
- a silver-tellurium-coated glass powder;
- a solvent;
- and
- an organic binder,
- wherein the silver-tellurium-coated glass powder is a silver-tellurium-coated glass powder including a tellurium-based glass powder containing tellurium in an amount of 20% by mass or more, and a coating layer on a surface of the tellurium-based glass powder, the coating layer containing silver and tellurium as a main component.
A method for producing a conductive paste, the method comprising:
- adding to a silver complex solution, a tellurium-based glass powder containing tellurium in an amount of 20% by mass or more, and then adding a reducing agent to form on a surface of the tellurium-based glass powder, a coating layer containing silver and tellurium as a main component, to thereby obtain a silver-tellurium-coated glass powder;
- and
- mixing the silver-tellurium-coated glass powder, a conductive powder containing silver, an indium powder, a solvent, and an organic binder.
Dependencies are inferred from the claim text.