China Polycrystalline Solar Cells with High Efficiency and Stable Performance
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5000 pc
- Supply Capability:
- 9000000 pc/month
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Polycrystalline Silicon Solar Cells:
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 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.
Specification:
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
Solar Panel Images:
FAQ
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.
New Achievement of Chinese solar cell research
Professor Xiong Yujie group from China Science and Technology University have designed a photoelectric conversion can be carried out and has a flexible solar cell mechanics in the near infrared region based on the widely used semiconductor silicon material, the use of hot electron injection method of metallic nanostructures. Most solar cells are for visible light absorption, accounting for 52% of the sunlight near-infrared light has not been used efficiently. To solve this problem, based on previous research group Xiong Yujie semiconductor - metal interface, creatively having a near-infrared light absorption properties of silver nano-chip with integrated silicon nanowires to build two different photovoltaic devices, the near infrared region photoelectric conversion characteristics are improved. In the near-infrared light, the silver nano-chip generated hot electrons can be injected directly into the silicon semiconductor, the band of the photoelectric conversion.
In addition, conventional solar cells must be processed into hard plate-like objects, which limit daily use. Lightweight and flexible devices, and can be folded, crimped, pasted on a surface, such as automotive glass, roof, clothes. Xiong Yujie group of commercial silicon nano process combined with silver nano-sheet near-infrared light absorption properties, to create a near-infrared solar cell having mechanical flexibility.
Experts said the work by nano-manufacturing and nano-synthesis two kinds of nano effective combination of technologies to achieve a broad spectrum of the light-absorbing composite structures design and the development of a simple and effective near-infrared flexible solar cell manufacturing method is expected to for the development of smart thermostat and wearable solar cells solar cells.
- Q:Can solar cells be used for powering water pumps?
- Yes, solar cells can be used for powering water pumps. Solar-powered water pumping systems utilize photovoltaic cells to convert sunlight into electricity, which can then be used to power water pumps. These systems are environmentally friendly, cost-effective, and reliable, making them a popular choice for remote areas or locations where grid electricity is not available.
- Q:How do solar cells perform in coastal environments?
- Solar cells perform well in coastal environments as they are not affected by the presence of salt in the air. However, high humidity levels and salt spray can potentially impact the performance of solar cells over time, requiring regular maintenance and cleaning to ensure optimal efficiency.
- Q:What are the main components of a solar cell?
- The main components of a solar cell are the semiconductor material (usually silicon), which absorbs sunlight and generates electrons, the metal contacts that allow the flow of current, and the transparent cover that protects the semiconductor from environmental factors while allowing sunlight to reach it.
- Q:Can solar cells be used on satellites?
- Yes, solar cells can be used on satellites. In fact, they are commonly used as the primary source of power for satellites in space.
- Q:Can solar cells be damaged by hail or other weather events?
- Yes, solar cells can be damaged by hail or other severe weather events. Hailstones, strong winds, and heavy debris can crack or break the delicate glass surface of solar panels, reducing their efficiency or rendering them completely non-functional. Therefore, it is important to consider the durability and quality of solar panels when installing them in areas prone to such weather conditions.
- Q:Are there any subsidies or incentives for installing solar cells?
- Yes, there are various subsidies and incentives available for installing solar cells. These can include federal tax credits, state and local incentives, grants, and rebates. These measures aim to promote the adoption of solar energy and make it more affordable for individuals and businesses to invest in solar panel installations.
- Q:How do solar cells impact energy independence?
- Solar cells impact energy independence by harnessing the power of the sun to generate electricity, reducing reliance on traditional fossil fuels. By providing a clean and renewable source of energy, solar cells contribute to reducing greenhouse gas emissions and increasing energy self-sufficiency, ultimately enhancing a country's energy independence.
- Q:How long is the long cycle solar cell life?
- A look at the application of the environment, if the ambient temperature is high, then in general, to 25 degrees as a benchmark, each increased by 10 degrees, life-span reduced by half;
- Q:Can solar cells be used in commercial applications?
- Yes, solar cells can be used in commercial applications. They are widely used in various sectors such as energy production, agriculture, telecommunications, transportation, and construction. Solar panels are employed to generate electricity for commercial buildings, provide power to remote areas, run water pumps, charge electric vehicles, and more. The cost-effectiveness, sustainability, and growing efficiency of solar technology have made it a viable option for businesses to reduce their carbon footprint and save on energy costs.
- Q:Can solar cells be used to power electric gates?
- Yes, solar cells can be used to power electric gates. Solar panels can capture sunlight and convert it into electricity, which can then be used to power various devices, including electric gates. This renewable energy source provides a sustainable and cost-effective solution for powering electric gates in areas where electricity supply is limited or unavailable.
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China Polycrystalline Solar Cells with High Efficiency and Stable Performance
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5000 pc
- Supply Capability:
- 9000000 pc/month
OKorder Service Pledge
OKorder Financial Service
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