Heraeus Precious Metals North America Conshohocken LLC

Li Yan

Lei Wang

Cuiwen Guo

Weiming Zhang

Raymond Michael Cosimano

Brenton Yancey

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 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.

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Warrington, PA, United States of America

Li Yan