CONDUCTIVE PASTE CONTAINING LEAD-FREE GLASS FRIT

摘要

The present invention discloses a conductive paste comprising a conductive metal or a derivative thereof, and a lead-free glass frit dispersed in an organic vehicle, wherein said lead-free glass frit comprises tellurium-bismuth-zinc-tungsten-oxide. The conductive paste of the present invention can be used in the preparation of an electrode of a solar cell with excellent energy conversion efficiency.

主权项

1. A conductive paste comprising:
(a) about 85% to about 99.5% by weight of a conductive metal or the derivative thereof, based on the weight of solids; (b) about 0.5% to about 15% by weight of a lead-free glass frit containing tellurium-bismuth-zinc-tungsten-oxide, based on the weight of solids; and (c) an organic vehicle; wherein the weight of solids is the total weight of the conductive metal (a) and the lead-free glass frit (b); wherein tellurium oxide is present in an amount of about 55 wt. % to about 90 wt. %, bismuth oxide is present in an amount of about 0.1 wt. % to about 15 wt. %, zinc oxide is present in an amount of about 0.1 wt. % to about 15 wt. % and tungsten oxide is present in an amount of about 0.1 wt. % to about 15 wt. % in the lead-free glass frit.