aluminum paste for solar cell

1,good print resolution, fine and smooth surface,high adhesion,low bow ,energy conversion efficiency.
2,environmental eletronic
LEED SP 788X is an environmental eletronic aluminium paste developed to provide back contact
metalization for solar cell, to mach with the TEC of silicon substrate well, it has the features of good
print resolution, fine and smooth surface,high adhesion,low bow ,energy conversion efficiency.

Data Sheet
Model
SP7881
SP7883
SP7888
SP7889
Solids Content
70~85%
Viscosity(Pa·S)(Brookfield HBT,25 ,10rpm)
40~70
Fineness
<20μm
Screen(BOPP stainless steel)
250~280 mesh
Drying
infrared stove,250~300°C/3min
rotary dry furnace,220°C/8~10min
Firing
760~900°C/1~20seconds
Dried Thickness
35±3μm
Fired Thickness
25±3μm
Resistivity (fired thickness)
≤30mΩ/£
Cell Winding(125single crystal silion,180μm)
≤1.2mm
≤1.25 mm
≤1.5 mm
≤0.8 mm
Adhesion(single side EVA adhesive tape)
excellent
Photoelectricity Conversion Efficiency
Single crystal silicon, average conversion efficiency≥17.7
Polysilicon, average conversion efficiency ≥16.5
Thinner
LEED XS-08
Main feature
excellent multiple-function
Energy conversion efficiency
high adhesion
Small distortion