New Solar Cell , Polycrystalline, Grade A , 17.2- 18% Efficiency, 3BB Quality Choice
Specifications
156*156mm polycrystalline silicon solar cell
High efficiency solar cell , Efficient photoelectric conversion, stable performance,
Features of solar cells
Efficient photoelectric conversion, stable performance
Unique etching process can increase the short-circuit current of the solar cell;
Consummate diffusion technology makes the lamina resistance more even,which helps reduce the resistance in series in the solar cell, and improve the photoelectric conversion efficiency of the cell;
Advanced PECVD technology provides well-proportioned navy blue silicon nitride anti-reflection velum;
Screen printing patterns are accurate and smoothness of the electrode is improved,
thus making the cell easier for welding and laser cutting
Mechanical data and design
Format 156 mm × 156 mm ± 0.5 mm
Thickness 190 μm ± 20 μm
Front (-) 1.8 mm bus bars (silver),blue anti-reflection coating (silicon nitride)
Back (+) 3 mm wide soldering pads (silver) back surface field (aluminium)
Temperature coefficients
ef.%/K -0.346%/K
ef.%/K +0.036%/K
Temp. coef.%/K -0.47%/K
ELECTRICAL CHARACTERISTICS
Efficiency(%) |
Pmpp(W) |
Vmpp(V) |
Impp(A) |
Voc(V) |
Isc(A) |
17.2-18 |
3.94 |
0.510 |
7.716 |
0.619 |
8.251 |




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