Place of Origin: | Zhejiang |
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Location: | Guangzhou, Guangdong, China (Mainland) |
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Business Type: | Manufacturer |
Main Products: | Universal Laptop Charger, Lenovo Laptop Charger, HP Notebook Charger |
Model No.: | ZC-TPB 156 x 156 |
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156 mm*156 mm poly crystalline Solar Cell 4.21 W 3 busbar
1> Quick Detail:
2> Description:
More than 90% of all currently used solar cells consists of a silicon wafer which is doped as a semiconductor.
To manufacture the wafer a block of the purest silicon is normally sawn into thin slices. During this process roughly the half of this block ends up as shavings which can no longer be used for solar cells since they are too contaminated.
To avoid these sawing losses the so-called EFG process (EFG: Edge-Defined Film-Fed Growth) was developed for which SCHOTT Solar owns the patents.
To manufacture EFG wafers the silicon is drawn out of the melt on an octagonal extraction frame, already with the desired thickness. With this process a silicon block is no longer created, instead a hollow octagonal tube with a very thin wall. The wafers are cut out of this frame using a laser with next to no loss of material.
The EFG process allows the manufacture of solar cells with significantly less energy. An important advance for the environment.
The diagram further down shows the individual steps of the EFG process: The octagonal tube from which the silicon wafers are cut, the wafers and the complete solar cell which is then installed in a PV solar panels.
3> Features:
4> Specifications:
Mechanical dimensions
Product name |
Efficiency(%) |
Pmpp(W) |
Vmpp(V) |
Impp(A) |
Voc(V) |
Isc(A) |
156 x 156mm(6") Poly-Crystalline Silicone Solar Cell | 17.2 | 4.21 | 0.527 | 7.988 | 0.626 | 8.851 |
17.0 | 4.16 | 0.524 | 7.931 | 0.624 | 8.462 | |
16.8 | 4.11 | 0.521 | 7.891 | 0.623 | 8.411 | |
16.6 | 4.06 | 0.518 | 7.843 | 0.621 | 8.363 | |
16.4 | 4.01 |
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