Polycrystalline Silicon Solar Cells156mm

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Instruction of Polycrystalline Silicon Solar Cells156mm:

Solar cells is made by solar wafer, it has three categories of solar cell right now, monocrystalline polycrystalline and thin film,

These cells are entirely based around the concept of ap-n junction, which is the critical part of solar module, it is the part that can convert the light energy into electricity, the thickness is from 180um to 200um, with even busbars to conduct electricity, textured cell can decrease diffuse reflection; they are often electrically connected and encapsulated as a module.

Photovoltaic modules often have a sheet of glass on the front (sun up) side, allowing light to pass while protecting  semiconductor wafers from abrasion and impact due to wind-driven debris, rain, hail, etc.

Solar cells are also usually connected in series in modules, creating an additive voltage.

Connecting cells in parallel will yield a higher current;With high quality and stable quality.

Our Cells can greatly improve the performance of Solar Modules.

 

Polycrystalline Silicon Solar Cells 156mm Advantage:

•  High efficiency and stable performance in photovoltaic conversion.
•  Advanced diffusion technique ensuring the homogeneity of energy conversion efficiency of the cell.
•  Advanced PECVD film forming, providing a dark blue silicon nitride anti-reflection film of homogenous color and attractive appearance.
•  High quality metal paste for back surface and electrode, ensuring good conductivity, high pulling strength and ease of soldering.
•  High precision patterning using screen printing, ensuring accurate busbar location for ease with automatic soldering a laser            cutting. 

 

Polycrystalline Silicon Solar Cells Images:

Polycrystalline Silicon Solar Cells156mm

 

Polycrystalline Silicon Solar Cells156mm


Polycrystalline Silicon Solar Cells156mm

 

Polycrystalline Silicon Solar Cells156mm

 

Polycrystalline Silicon Solar Cells156mm

 

Specification of Polycrystalline Silicon Solar Cells:

Mechanical data and design

Format          -       156 mm × 156 mm ± 0.5 mm  

Thickness-       -       200 μm ± 20 μm

Front (-)         -       1.4 mm bus bars (silver),blue anti-reflection coating (silicon nitride)

Back (+)           -     2 mm wide soldering pads (silver) back surface field (aluminium)

Temperature Coefficient of Cells

Voc. Temp .coef.%/K                 -0.364%/K   

Isc . Temp .coef.%/K                 +0.077%/K

Pm. Temp. coef.%/K                 -0.368%/K

 

Electrical Characteristic

Efficiency (%)           Pmpp (W)          Umpp (V)        Impp (A)           Voc (V)          Isc (A)      

  18.00%                    4.380                 0.538             8.141               0.634             8.740

  17.90%                    4.356                 0.538             8.097               0.634             8.725

   17.80%                    4.331                 0.537             8.065                0.633            8.710

   17.70%                    4.307                 0.536             8.035                0.632            8.695

   17.60%                    4.283                 0.535             8.006                0.631            8.680

   17.50%                    4.258                 0.534             7.974                0.630            8.665

  17.40%                    4.234                 0.533             7.944                0.629            8.650

  17.30%                    4.210                 0.532             7.914                0.628            8.635

   17.20%                    4.185                 0.531              7.88    --            0.627        -- 8.620

   17.10%                    4.161                 0.530              7.851                 0.626           8.605

   17.00%                    4.137                 0.529              7.820                0.625           8.590

 

Intensity Dependence

Intensity [W/m2]      Isc× [mA]          Voc× [mV]           Pmpp

1000                         1.00                    1.000                 1.00

900                           0.90                    1.000                 0.90

800                           0.80                    0.99                   0.80

500                           0.50                    0.96                   0.49

300                           0.30                    0.93                   0.29

200                           0.20                    0.92                   0.19

 

IV Curve

Polycrystalline Silicon Solar Cells156mm

 FAQ of Polycrystalline Silicon Solar Cells

We have organized several common questions for our clients,may help you sincerely:

①What price for each watt?

It depends on the efficiency of the solar cell, quantity, delivery date and payment terms.

②How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

③Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.

We can provide you not only the solar module but also the off grid solar system, we can also provide you service with on grid plant.

④What is your warranty of solar cell?

 Our product can promise lower than 0.3% open box crack, we support claim after opening the box if it has crackm color difference or sth, the buyer should give pictures immediately, we can not accept the claim after the solar cell has assembled to solar panel.

• Timeliness of delivery

• ⑤How do you pack your products?

We have rich experience on how to pack the solar cell to make sure the safety on shipment, we could use wooden box or pallet as buyer's preference.

⑥ Can you do OEM for us?

Yes, we can.

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Q:What is the best sales solution for solar power cells?
I highly recommend you to put your solar power cells for sales on the B2B website, such as alibaba.com in China. Because in this way, your product can be seen by many buyers.
Q:How can I explain to my 10 year old daughter what solar cells are?
According to Wikipedia: A solar cell, or photovoltaic cell (in very early days also termed "solar battery"[1] – a denotation which nowadays has a totally different meaning, see here), is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.
Q:Is a solar cell expensive to make?
The cost can be high to diy solar cells.
Q:Is A grade better than the B grade when we buy the poly solar cells.
I think the A grade is better than B grade, but just not sure how better it can be compared to the others.
Q:How about the solar cell 156mm Mono-Crystalline?
It is difficult to explain, but the measurement usually doesn't matter, because only the materials matters most for the solar cells.
Q:How about the current market price for the film solar?
The price of film solar varies based on the quality and quantity. The expensive one could be RMN 150 each, while the cheaper on could be only RMB 25 each.
Q:Anybody ever heard of solar roll flexible solar panel?
It could be a portable solar panel charges your digital camera, camcorder, GPS, and satellite phone. Expedition members no longer need to pack heavy batteries for their worldwide journeys.
Q:I bought a new poly solar cells, and the test result of the conversion efficiency is 16.8%, is it lower than usual?
It depends on what kind os poly solar cell you are using, if it is 260 watt photovoltaic solar panel, 16.8% is a bit lower.
Q:What are the 3 things you need to know before you start to make solar cells?
There is another easy way to make a solar cell by using 2 small sheets of brushed copper and setting 1 of them on the hot plate for half an hour until the copper turns black. Some magic will happen.
Q:What is the accurate explanation for the sun solar cell power system? How does it work?
The sun solar cells power system is the newly developed technology which can change the sunlight power into the energy used in our work and life.

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