solar cell back side aluminum paste

1.LEED SP 7887 is an environmental eletronic aluminium paste 2.provide back contact metalization for solar cell
LEED SP 7887 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
SP7887
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)
≤0.8mm
Adhesion(single side EVA adhesive tape)
excellent
Photoelectricity Conversion Efficiency
Monocrystal silicon, average conversion efficiency≥17.7
Polysilicon, average conversion efficiency ≥16.5
Thinner
LEED XS-08
Main feature
energy conversion efficiency