PASTE COMPOSITION FOR FORMING SOLAR CELL FRONT ELECTRODE, N-TYPE SOLAR CELL FRONT ELECTRODE FORMED BY USING THE COMPOSITION, AND SOLAR CELL INCLUDING THE FRONT ELECTRODE

摘要

The present invention relates to a paste composition for forming a solar cell front electrode, a solar cell front electrode formed by using the composition, and a solar cell including the front electrode.;Specifically, the paste composition includes conductive powder; an inorganic additive; and an organic vehicle, wherein the conductive powder is a metal powder including a mixture of silver (Ag) powder and aluminum (Al) powder, and the inorganic additive includes a lead (Pb)-zinc (Zn)-boron (B)-silicon (Si)-tungsten (W)-based glass frit.

主权项

1. A paste composition for forming a solar cell front electrode, comprising:
conductive powder; an inorganic additive; and an organic vehicle, wherein the conductive powder is a metal powder including a mixture of silver (Ag) powder and aluminum (Al) powder, and the inorganic additive includes a lead (Pb)-zinc (Zn)-boron (B)-silicon (Si)-tungsten (W)-based glass frit, wherein a total amount (100 wt %) of the glass frit includes 60 to 80 wt % of lead oxide (PbO), 15 to 25 wt % of zinc oxide (ZnO), 1 to 10 wt % of boron oxide (B2O3), 1 to 5 wt % of silicon oxide (SiO2), and 0.1 to 1.0 wt % of tungsten oxide (WO3).