LOW-SILVER ELECTROCONDUCTIVE PASTE
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Jul 9, 2015
app pub date -
Dec 18, 2014
filing date -
Jan 9, 2014
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Abstract
An electroconductive paste composition for electrode formation in solar cells including about 20 to about 50 wt % spherical silver powder having a particle size d50 of about 0.1 μm to about 1 μm, based upon 100% total weight of the paste, about 10 to about 30 wt % silver flake having a particle size d50 of about 5-8 μm, based upon 100% total weight of the paste, substantially lead-free glass frit having a particle size d90 of about 0.5-3 μm, and organic vehicle, wherein the glass frit includes less than 5 wt % zinc oxide, based upon 100% total weight of the glass system.
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