NOVELTY - A silver paste is obtained by mixing and ball milling component (A) and component (B). The component (A) comprises 40-50 pts.wt. silver powder having particle size of 1-5 mu m, 5-10 pts.wt. silver powder having particle size of 16-25 mu m, 5-10 pts.wt. silver powder having particle size of 61-90 nm, 10-15 pts.wt. organic carrier (a), and 15-20 pts.wt. glass powder (A) comprising 20-40 pts.wt. silica, 10-20 pts.wt. lithium oxide, 5-10 pts.wt. zinc oxide, 5-8 pts.wt. copper oxide, 2-5 pts.wt. silver oxide and 1-3 pts.wt. barium oxide.    USE - Silver paste is used in manufacture of single crystal silicon solar cell.    ADVANTAGE - The silver paste is free from lead and is environmentally friendly. The solar cell using the silver paste has high stacking density, conductivity and durability.    DETAILED DESCRIPTION - A silver paste is obtained by mixing and ball milling component (A) and component (B). The component (A) comprises 40-50 pts.wt. silver powder having particle size of 1-5 mu m, 5-10 pts.wt. silver powder having particle size of 16-25 mu m, 5-10 pts.wt. silver powder having particle size of 61-90 nm, 10-15 pts.wt. organic carrier (a), and 15-20 pts.wt. glass powder (A) comprising 20-40 pts.wt. silica, 10-20 pts.wt. lithium oxide, 5-10 pts.wt. zinc oxide, 5-8 pts.wt. copper oxide, 2-5 pts.wt. silver oxide and 1-3 pts.wt. barium oxide. The organic carrier (A) is prepared by mixing 30-40 pts.wt. polyethylene glycol, 15-20 pts.wt. triethanolamine, 10-20 pts.wt. propylene glycol monobutyl ether, 5-10 pts.wt. cellulose, 2-5 pts.wt. lactate and 0.1-5 pts.wt. stearic acid. The component (B) comprises 5-10 pts.wt. copper powder having particle size of 1-5 mu m, 5-10 pts.wt. copper powder having particle size of 16-25 mu m, 3-6 pts.wt. organic carrier (b) and 5-10 pts.wt. glass powder comprising 10-20 pts.wt. bismuth oxide, 5-10 pts.wt. boron trioxide, 5-8 pts.wt. silica, 2-5 pts.wt. zirconia, 2-5 pts.wt. titania, 1-5 pts.wt. sodium oxide and 1-3 pts.wt. calcium oxide. The organic carrier (b) is prepared using 10-20 pts.wt. butyl carbitol, 5-10 pts.wt. petroleum ether, 5-10 pts.wt. cellulose, 2-5 pts.wt. organic-modified bentonite, and 0.5-1 pts.wt. aniline methyl ethoxy silane. An INDEPENDENT CLAIM is included for preparation of silver paste.