| 摘要 |
PURPOSE: A glass frit, paste composition and a solar cell are provided to enhance a fill factor and efficiencies of solar batteries by simultaneously using a first glass frit and a second frit. CONSTITUTION: A glass frit comprises lead oxide (PbO), a first glass frit, and a second glass frit having different compositions. The principal components of the first and second glass frits are identical. The principal components include PbO, SiO2 and B2O3. The first glass frit and the second glass frit are PbO-SiO2-B2O3 based. The first and the second glass frits respectively include 71.8-90 wt% of PbO, 4.9-12 wt% of SiO2, 4.9-11 wt% of B2O3, 0-5 wt% of Al2O3, 0.5-5 wt% of ZnO, 0-5 wt% of TiO2, 0-5 wt% of SrO, 0-5 wt% of BaO, 0-5 wt% of ZrO, 0.3-0.5 wt% of Fe2O3, 0.2-0.5 wt% of Cr2O3, 0.1-0.4 wt% of Co2O3 or CoO, and 0.3-0.5 wt% of MnO2. The glass frit comprises 40-60 wt% of the first glass frit and 40-60 wt% of the second glass frit. The electrode paste composition of the solar battery comprises the glass frit, a conductive powder and an organic vehicle. The electrode paste composition can be used for forming a front electrode(12) of the solar battery.
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