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1. (WO2010117773) METAL PASTES AND USE THEREOF IN THE PRODUCTION OF SILICON SOLAR CELLS

Pub. No.:    WO/2010/117773    International Application No.:    PCT/US2010/029181
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Wed Mar 31 01:59:59 CEST 2010
IPC: H01B 1/16
C03C 8/12
C03C 8/18
H01L 31/0224
Applicants: E. I. DU PONT DE NEMOURS AND COMPANY
LAUDISIO, Giovanna
YOUNG, Richard, John, Sheffield
WILLMOTT, Peter, James
HANG, Kenneth, Warren
Inventors: LAUDISIO, Giovanna
YOUNG, Richard, John, Sheffield
WILLMOTT, Peter, James
HANG, Kenneth, Warren
Title: METAL PASTES AND USE THEREOF IN THE PRODUCTION OF SILICON SOLAR CELLS
Abstract:
Metal pastes comprising (a) at least one electrically conductive metal powder selected from the group consisting of silver, copper and nickel, (b) at least one lead-containing glass frit with a softening point temperature in the range of 571 to 636 ˚C and containing 53 to 57 wt.-% of PbO, 25 to 29 wt.-% of SiO2, 2 to 6 wt.-% of Al2O3 and 6 to 9 wt.-% of B2O3 and (c) an organic vehicle.