NOVELTY - A conductive silver paste (p1) comprises: silver; a vanadium-phosphorus-antimony-zinc-based-oxide comprising 45-60 wt.% vanadium pentoxide (V2O5), 15-30 wt.% phosphorus pentoxide (P2O5), 5-20 wt.% antimony oxide (Sb2O3) and 3-15 wt.% zinc oxide (ZnO), or a tellurium-boron-phosphorus-based-oxide comprising 80-95 wt.% tellurium dioxide (TeO2), 1-10 wt.% boron trioxide (B2O3) and 1-10 wt.% P2O5; and an organic vehicle. The silver and the vanadium-phosphorus-antimony-zinc-based-oxide or tellurium-boron-phosphorus-based-oxide, are dispersed in the organic vehicle.    USE - As conductive silver paste used for the production of metal-wrap-through (MWT) solar cells (claimed) and also used to form the collector lines on the front-side of the solar cell and the emitter electrode on the back-side of the solar cell.    ADVANTAGE - The conductive silver pastes are particularly useful in providing the metallization of the holes in the silicon wafers of metal-wrap-through (MWT) solar cells with improved performance; and have good hole filling capability. This metallization results in a metallic electrically conductive via between the collector lines on the front side and the emitter electrode on the back-side of the solar cell.    DETAILED DESCRIPTION - A conductive silver paste (p1) comprises: silver; a vanadium-phosphorus-antimony-zinc-based-oxide comprising 45-60 wt.% vanadium pentoxide (V2O5), 15-30 wt.% phosphorus pentoxide (P2O5), 5-20 wt.% antimony oxide (Sb2O3) and 3-15 wt.% zinc oxide (ZnO), or a tellurium-boron-phosphorus-based-oxide comprising 80-95 wt.% tellurium dioxide (TeO2), 1-10 wt.% boron trioxide (B2O3) and 1-10 wt.% P2O5, or a tellurium-molybdenum-cerium-based-oxide comprising 45-65 wt.% TeO2, 20-35 wt.% molybdenum trioxide (MoO3) and 10-25 wt.% cerium oxide (CeO2); and an organic vehicle. The silver and the vanadium-phosphorus-antimony-zinc-based-oxide or tellurium-boron-phosphorus-based-oxide, are dispersed in the organic vehicle. An INDEPENDENT CLAIM is included for a metal-wrap-through silicon solar cell with an n-type or a p-type silicon base comprising the fired conductive silver paste (p1).