In general, the invention relates to electro-conductive pastes comprising a glass which comprises molybdenum and lead as a constituent of a solar cell paste, and the use of such in the preparation of photovoltaic solar cells. More specifically, the invention relates to electroconductive pastes, precursors, processes for preparation of solar cells, solar cells and solar modules. The invention relates to an electro-conductive paste at least comprising as paste constituents: a) metallic particles; b) a glass; c) an organic vehicle; and d) an additive; wherein the glass comprises the following: i) Pb in the range from about 1 to about 94 wt. %; ii) Mo in the range from about 2 to about 30 wt. %; iii) O in the range from about 1 to about 50 wt. %; with the wt. % in each case being based on the total weight of the glass.

In general, the invention relates to electro-conductive pastes comprising a glass which comprises molybdenum and lead as a constituent of a solar cell paste, and the use of such in the preparation of photovoltaic solar cells. More specifically, the invention relates to electroconductive pastes, precursors, processes for preparation of solar cells, solar cells and solar modules. The invention relates to an electro-conductive paste at least comprising as paste constituents: a) metallic particles; b) a glass; c) an organic vehicle; and d) an additive; wherein the glass comprises the following: i) Pb in the range from about 1 to about 94 wt. %; ii) Mo in the range from about 2 to about 30 wt. %; iii) O in the range from about 1 to about 50 wt. %; with the wt. % in each case being based on the total weight of the glass.

A composition for solar cell electrodes, a solar cell electrode, and a solar cell, the composition including silver powder; glass frit; an organic vehicle; and an epoxy group-containing silicon compound, wherein the glass frit includes bismuth and tellurium, and the organic vehicle includes a cellulose resin.

A composition for solar cell electrodes, a solar cell electrode, and a solar cell, the composition including silver powder; glass frit; an organic vehicle; and an epoxy group-containing silicon compound, wherein the glass frit includes bismuth and tellurium, and the organic vehicle includes a cellulose resin.

A composition for solar cell electrodes, a solar cell electrode prepared from the composition, a solar cell, and a method of manufacturing the same, the composition including silver powder; silver iodide; glass frit; and an organic vehicle, wherein the silver iodide is present in an amount of about 0.1 wt % to about 30 wt %, based on a total weight of the composition.

A composition for solar cell electrodes, a solar cell electrode prepared from the composition, a solar cell, and a method of manufacturing the same, the composition including silver powder; silver iodide; glass frit; and an organic vehicle, wherein the silver iodide is present in an amount of about 0.1 wt % to about 30 wt %, based on a total weight of the composition.

The present invention is directed to a silver paste for a Si solar cell comprising a high purity Bi.sub.2O.sub.3 additive and a solar cell having a silicon wafer with the silver paste on its front-side surface. The resultant cell exhibits improved efficiency.

The present invention is directed to a silver paste for a Si solar cell comprising a high purity Bi.sub.2O.sub.3 additive and a solar cell having a silicon wafer with the silver paste on its front-side surface. The resultant cell exhibits improved efficiency.

Pastes are disclosed that are configured to coat a passage of a substrate. When the paste is sintered, the paste becomes electrically conductive so as to transmit electrical signals from a first end of the passage to a second end of the passage that is opposite the first end of the passage. The metallized paste contains a lead-free glass frit, and has a coefficient of thermal expansion sufficiently matched to the substrate so as to avoid cracking of the sintered paste, the substrate, or both, during sintering.

Pastes are disclosed that are configured to coat a passage of a substrate. When the paste is sintered, the paste becomes electrically conductive so as to transmit electrical signals from a first end of the passage to a second end of the passage that is opposite the first end of the passage. The metallized paste contains a lead-free glass frit, and has a coefficient of thermal expansion sufficiently matched to the substrate so as to avoid cracking of the sintered paste, the substrate, or both, during sintering.