SILVER SOLAR CELL CONTACTS

摘要

Solar cell conductor formulations made are from two silver powders having different particle size distributions, an aluminum powder, and two frit glass compositions having softening points in the range of 250-700° C. and whose softening points differ by at least 10° C.

主权项

1. A solar cell comprising a contact comprising a paste, the paste comprising, prior to firing,
a. one or more silver powders, b. a first glass frit having a first softening temperature in the range of 250-650° C., and a particle size range of 0.2 to 20 microns, c. a second glass frit having a second softening temperature in the range of 300-700° C., and a particle size range of 0.2 to 20 microns, such that the first and second softening temperatures differ by at least 10° C.