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 a monocrystalline Silicon Solar Cells?
Monocrystalline photovoltaic electric solar energy panels have been the go-to choice for many years. They are among the oldest, most efficient and most dependable ways to produce electricity from the sun.
Q:Can I trust the suppliers for film solar that I found on alibaba.com?
Well, it really depends on what kind of suppliers you are dealing with, because as a matter of fact, some of the suppliers on alibaba.com are very tricky!
Q:What are the 3 things you need to know before you start to make solar cells?
I think there is an easy way to follow even though the commercial solar cells use silicon as the semiconductor.
Q:Can a solar cell be used in commercial buildings?
Solar cells are very often used in commercial buildings to generate the power
Q:Anybody ever heard of solar roll flexible solar panel?
The flexible solar cells is more convenient to take with you, and also easy to charge as long as you do know how to use it properly.
Q:How to explain to students how the solar cells are made?
Purifying the silicon is the first step to make solar cells.
Q:How do solar cells work to become the solar energy?
The solar cells work by using the solar power from sunshine to generate the energy such as electricity to become solar energy.
Q:How long does it take to make a solar cell?
Solar cell requires the sunlight to be made eventually, so if it's not sunny at all, it will take you much longer than you thought.
Q:Which one is better on the solar cells panel? The Monocrystal Solar Energy Cell or photovoltaic cell?
The photovoltaic cell is better in collecting the sunlight, which means it will be more efficient when the sunlight is better.
Q:How many solar cells are there in a solar panel?

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