Method of making solar cell contacts

摘要

Formulations and methods of making solar cells are disclosed. In general, the invention presents a solar cell contact made from a mixture wherein the mixture comprises a solids portion and an organics portion, wherein the solids portion comprises from about 85 to about 99 wt % of silver, and from about 1 to about 15 wt % of a glass component wherein the glass component comprises from about 15 to about 75 mol % PbO, and from about 5 to about 50 mol % SiO2, and preferably with no B2O3.

主权项

1. 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; andfrom 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 % SiO2, about 0.1 mol % to about 15 mol % Al2O3, about 0.1 mol % to about 8 mol % P2O5, optionally about 0.1 mol % to about 10 mol % Ta2O5, and optionally about 0.1 mol % to about 10 mol % ZrO2, and is free of B2O3.