Glass compositions used in conductors for photovoltaic cells
AssigneeE. I. Du Pont de Nemours and Company
InventorsTakuya Konno, Hisashi Matsuno, Brian J. Laughlin
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Abstract
An objective of this present invention is to provide a conductive paste that could obtain good electrical property, for example series resistance in an electrode. An aspect of the present invention relates to a conductive paste which comprises electrically conductive powder; glass frit which comprises, based on weight percent (wt %) of the glass frit, 8-26 wt % of SiO2, 0.1-5 wt % of Al2O3, and 73-90 wt % of lead compound, wherein lead fluoride is contained in the range of 5-28 wt % based on the total weight of the lead compound; and organic medium.
Claims5
A method of manufacturing a solar cell electrode comprising steps of:
- providing a semiconductor substrate;
- applying a conductive paste onto the semiconductor substrate, wherein the conductive paste comprises, electrically conductive powder, glass frit which comprises, based on weight percent (wt %) of the glass frit:
- 8-26 wt % of SiO2,
- 0.1-5 wt % of Al2O3,
- 0.5-5.0 wt % of B2O3, and
- 73-90 wt % of lead compound, wherein the lead compound comprises 5-18 wt % of lead fluoride based on the total weight of the lead compound;
- and
- organic medium;
- and
- firing the conductive paste.
Dependencies are inferred from the claim text.