Process for producing conductive pastes for forming solar cell electrodes
AssigneeNamics Corporation
InventorTetsu Takahashi
Life of this patent
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Abstract
A process for producing conductive pastes for forming solar cell electrodes, including a step of measuring binding energies of oxygen in a glass frit by X-ray photoelectron spectroscopy, a step of selecting a glass frit providing an X-ray photoelectron spectrum representing binding energies of oxygen in which the signal intensity of a peak with a peak top at a range from 529 eV to less than 531 eV has a proportion of 40% or more relative to the total of signal intensities from 526 eV to 536 eV, and a step of mixing together a conductive powder, the glass frit and an organic vehicle.
Claims19
A process for producing a conductive paste for forming a solar cell electrode, comprising:
- (a) preparing a glass frit comprising silicon oxide and 50 to 70 mol % of lead oxide,
- (b) measuring binding energies of oxygen in the glass frit by X-ray photoelectron spectroscopy,
- (c) determining that an X-ray photoelectron spectrum representing the binding energies of oxygen in the glass frit has a signal intensity of a peak with a peak top at a range from 529 eV to less than 531 eV that has a proportion of 40% or more relative to the total of signal intensities from 526 eV to 536 eV, and
- (d) mixing together a conductive powder, the glass frit and an organic vehicle, after determining that the X-ray photoelectron spectrum representing the binding energies of oxygen in the glass frit has the signal intensity of the peak with the peak top at the range from 529 eV to less than 531 eV that has the proportion of 40% or more relative to the total of signal intensities from 526 eV to 536 eV.
Dependencies are inferred from the claim text.