CONDUCTIVE PASTES FOR FORMING SOLAR CELL ELECTRODES
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United States of America Patent
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N/A
Issued Date -
Nov 28, 2013
app pub date -
May 21, 2013
filing date -
May 22, 2012
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The invention relates to a process for manufacturing solar cells. The manufacturing process of the invention comprises the steps of printing a conductive paste onto an n-type silicon layer of a crystalline silicon substrate or onto an antireflection film on the n-type silicon layer, and drying and firing the conductive paste to form an electrode. The conductive paste comprises a conductive powder, a glass frit and an organic vehicle. The glass frit comprises at least one oxide. X-ray photoelectron spectroscopy of the glass fit gives a 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.
First Claim
Other Claims data not available