Heraeus Precious Metals North America Conshohocken LLC

Heraeus Deutschland Gmbh & Co Kg

Lei Wang

Weiming Zhang

Cuiwen Guo

Matthias Hörteis

Li Yan

Raymond Michael Cosimano

Brenton Yancey

Crystal J Han

Jing Crystal Han

Weiming Zhan

The invention provides an electroconductive paste comprising metallic particles, an inorganic reaction system, and an organic vehicle. The inorganic reaction system includes a lead-tellurium-magnesium composition of Formula (II): Pb&#x2014;Te&#x2014;(Mg&#x2014;Ca&#x2014;Sr&#x2014;Ba)-M-Oe, wherein 0&#x3c;a, b, or d&#x2264;1, 0&#x2264;w, x, y, z&#x2264;1, w+x+y+z=c, at least one of w, x, y and z is greater than zero, the sum of a, b, c and d is 1, 0&#x3c;c&#x2264;0.2, 0&#x2264;d&#x2264;0.5, a:b is between about 10:90 and about 90:10, (a+c+d):b is between about 10:90 and about 90:10, M is one or more elements, and e is a number sufficient to balance the Pb, Te, Mg&#x2014;Ca&#x2014;Sr&#x2014;Ba and M components.

Lead-tellurium inorganic reaction systems

An inorganic reaction system comprising a lead-bismuth-tellurium-silicate composition of Formula (I): Pb&#x2014;Bi&#x2014;Te&#x2014;Si-M-O, wherein 0&#x3c;a, b, c, d, or g&#x2264;1, 0&#x2264;d, e&#x2264;1, and the sum of a, b, c, d and g is 1, 0&#x3c;a&#x2264;0.05, 0.2&#x3c;b&#x2264;0.95, 0&#x3c;c&#x2264;0.5, 0&#x3c;d&#x2264;0.2, 0&#x3c;g&#x2264;0.5, a:b is between about 0.1:99.9 to about 5:95, b:c is between about 50:50 to 99:1, a:c is between about 1:99 to about 10:90, b:g is between about 50:50 to about 98:2, M is one or more elements, and e is a number sufficient to balance the Pb, Bi, Te, Si, and M components.

Lead-bismuth-tellurium-silicate inorganic reaction system having improved adhesion properties

The present invention relates to an inorganic reaction system used in the manufacture of electroconductive pastes. The inorganic reaction system comprises a lead containing matrix forming composition and a tellurium oxide additive. Preferably the lead containing matrix forming composition is between 5-95 wt. % of the inorganic reaction system, and the tellurium oxide additive is between 5-95 wt. % of the inorganic reaction system. The lead containing matrix forming composition may be a glass frit, and may comprise lead oxide. Another aspect of the present invention relates to an electroconductive paste composition that comprises metallic particles, an inorganic reaction system as previously disclosed, and an organic vehicle. Another aspect of the present invention relates to an organic vehicle that comprises one or more of a binder, a surfactant, a solvent, and a thixatropic agent. Another aspect of the present invention relates to a solar cell printed with an electroconductive paste composition as disclosed, as well as an assembled solar cell module. Another aspect of the present invention relates to a method of producing a solar cell.

Conductive thick film paste for solar cell contacts

The invention relates to an electro-conductive paste comprising coarse SiOparticles in the preparation of electrodes in solar cells, particularly in the preparation of electrodes in MWT solar cells, particularly in the preparation of the metal wrap through, or plug, electrode in such solar cells. In particular, the invention relates to a solar cell precursor, a process for preparing a solar cells, a solar cell and a module comprising solar cells. The invention relates to a solar cell precursor at least comprising as precursor parts:

Electro-conductive paste comprising coarse inorganic oxide particles in the preparation of electrodes in MWT solar cells

The invention provides an inorganic reaction system for the preparation of electroconductive paste. Particularly, an inorganic reaction system comprises conductive glass. The inorganic reaction system may comprise a silver containing matrix forming composition. The silver containing matrix composition may comprise at least one of silver oxide or silver halide, or both. The invention also provides solar cells manufactured utilizing an electroconductive paste comprising an inorganic reaction system comprising conductive glass, and methods of manufacturing solar cells utilizing an electroconductive paste comprising an inorganic reaction system comprising conductive glass.

Inorganic reaction system for electroconductive paste composition

This disclosure relates to electroconductive paste formulations useful in solar panel technology. In one aspect, the disclosure relates to an inorganic reaction system for use in electroconductive paste compositions, wherein the inorganic reaction system comprises a lead containing matrix composition and a tellurium containing matrix composition. In another aspect, the disclosure relates to an electroconductive paste composition comprising a conductive metal component, an inorganic reaction system and an organic vehicle. Another aspect of the disclosure relates to a solar cell produced by applying an electroconductive paste composition of the invention to a silicon wafer. Yet another aspect relates to a solar cell module assembled using solar cells produced by applying an electroconductive paste composition to a silicon wafer, wherein the electroconductive paste composition comprises an conductive metal component, an inorganic reaction system and an organic vehicle.

Tellurium inorganic reaction systems for conductive thick film paste for solar cell contacts

The invention relates to an inorganic reaction system used in the manufacture of electroconductive pastes. The inorganic reaction system comprises a lead containing composition and elemental tellurium, where in the lead containing composition is between 5-95 wt. % of the inorganic reaction system, and the elemental tellurium is between 5-95 wt. % of the inorganic reaction system. More preferably, the lead containing composition is between 40-90 wt. % of the inorganic reaction system, and the elemental tellurium is between 10-40 wt. % of the inorganic reaction system. The lead containing composition can be a glass frit and can further comprise lead oxide. Another aspect of the invention relates to an electroconductive paste composition that comprises metallic particles, an inorganic reaction system as disclosed, and an organic vehicle. Another aspect of the invention relates to an organic vehicle that comprises a binder, a surfactant, a solvent, and a thixatropic agent. Another aspect of the invention relates to a solar cell printed with an electroconductive paste composition as disclosed, as well as an assembled solar cell module. Another aspect of the invention relates to a method of producing a solar cell.

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Conshohocken, PA, United States of America

Lei Wang