Patent ID: 8889041

Claim:
A composition for forming a solar cell contact, the composition comprising: an organic portion; and a solids portion comprising: from about 85% to about 99% by weight of a conductive metal component consisting of a silver component; and from about 1% to about 15% by weight of a glass component wherein the glass component consists of 15 mol % to 75 mol % PbO, 5 mol % to 50 mol % SiO 2 , about 0.1 mol % to about 15 mol % Al 2 O 3 , about 0.1 mol % to about 8 mol % P 2 O 5 , optionally about 0.1 mol % to about 10 mol % Ta 2 O 5 , and optionally about 0.1 mol % to about 10 mol % ZrO 2 , and is free of B 2 O 3 .