Aerospace Grade Polycrystalline Solar Cells - High Efficiency, Low Price
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5000 pc
- Supply Capability:
- 8000000 pc/month
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Brief Introduction of Solar Cells
A solar cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Solar cells are the building blocks of photovoltaic modules, otherwise known as solar panels.
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.
Usage of Polycrystalline Solar Cells
Solar cells 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 the 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; our solar cells have passed IEC Certification. With high and stable quality, our cells can greatly improve the performance of Solar Modules.
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 |
Polycrystalline 156x156mm 3BB | ||||||
EFF Code | EFF. (%) | Pmax(W) | Impp(A) | Vmpp(V) | Isc(A) | Voc(V) |
1760 | 17.60 | 4.28 | 8.060 | 0.531 | 8.610 | 0.633 |
1740 | 17.40 | 4.23 | 8.030 | 0.524 | 8.570 | 0.632 |
1720 | 17.20 | 4.19 | 8.000 | 0.522 | 8.510 | 0.631 |
1700 | 17.00 | 4.14 | 7.850 | 0.521 | 8.490 | 0.622 |
1680 | 16.80 | 4.09 | 7.770 | 0.521 | 8.390 | 0.620 |
1660 | 16.60 | 4.04 | 7.650 | 0.519 | 8.350 | 0.615 |
1640 | 16.40 | 3.99 | 7.580 | 0.516 | 8.290 | 0.615 |
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:
Packaging & Delivery of Polycrystalline Solar Cells
Carton Box Package and Deliver by air. It should be noticed that it should be avoid of water, sunshine and moist.
Faq
We have organized several common questions for our clients,may help you sincerely:
1. What’s price per watt?
A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.
2. Can you tell me the parameter of your solar cells?
We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.
3. How do you pack your products?
We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.
4. Can you do OEM for us?
Yes, we can.
5. How 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 perfect time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.
Silicon is the ideal material for solar cells, which is the silicon-based solar cells the main reason. But with the development of new materials and related technologies continue to develop, with other material-based solar cells are also showing more and more attractive prospect.
N-type Crystalline Solar Cell
In the bottom plate of the N-type semiconductor solar cell, a greater resistance to impurities, easier to improve the energy conversion efficiency, in theory, the attenuation rate is relatively low, but the process is more complex and costly. Pentavalent element incorporated in pure silicon crystal (such as phosphorus, arsenic, antimony, etc.), so as to replace the position of the crystal lattice of silicon atoms to form a N-type semiconductor.
At present, has reached large-scale production of N-type silicon solar cells, there are three, namely, Japan's Matsushita N-SiHITN type silicon solar cells, the United States SunpowerIBC structure N-type silicon solar cells, as well as Yingli Panda N-type silicon cells. In market share, the International Technology Roadmap for PV (ITRPV) Expected N-type Crystalline Solar Cell from 2014 up to 18% in 2020 to 50% left and right.
N-type Crystalline Solar Cell industry level: 21% -24%
P- type Crystalline Solar Cell
In the bottom of the P-type semiconductor solar cells, low cost, high attenuation rate, 25 years after the decay rate can reach 15-20%. Incorporation of trivalent elements (such as boron) in pure silicon crystal, so that the position of substitution of silicon atoms in the lattice to form P-type semiconductor.
Industrialization Level - Domestic: 18.7% -19.2% overseas: 19.2% -20%
Battery Polycrystalline
Polycrystalline silicon solar cells combines the high conversion efficiency monocrystalline silicon cells and preparation of amorphous silicon thin film materials as well as long-life battery, etc. relatively simplified new generation of batteries, the conversion efficiency is generally about 12%, slightly lower than the silicon solar cells, there is no obvious efficiency recession, and may be prepared on an inexpensive substrate material, the cost is much lower than silicon cells, and more efficient than amorphous silicon thin film batteries.
Industry level: 17% -17.5%
- Q: Does the solar cell generate electricity in the absence of the sun, only in the case of strong lights or lasers? If you can achieve how much, and the same day?
- Sunlight is a composite light, in which only the frequency is greater than the solar cell threshold photons can effectively stimulate the solar cell power generation.
- Q: What is the maintenance required for solar cells?
- The maintenance required for solar cells is typically minimal. It involves regular cleaning of the solar panels to remove any dust or debris that may accumulate and potentially reduce their efficiency. Additionally, periodic inspections are recommended to detect any signs of damage or wear, such as cracked glass or loose connections, which should be repaired promptly. Overall, proper maintenance ensures optimal performance and longevity of solar cells.
- Q: What is 3d solar cell? And anybody know any manufacturers?
- 3d solar cells are more high efficient than the usual solar cells, and it's a new developed technology which is not used very widely. Therefore, there are not many manufcturers are producing it.
- Q: What is the impact of maintenance and cleaning on solar cell performance?
- Maintenance and cleaning play a crucial role in maintaining optimal solar cell performance. Regular maintenance, such as inspecting and repairing any damages, ensures that the cells are functioning efficiently and effectively. Additionally, cleaning the solar panels helps remove any dirt, dust, or debris that can accumulate and hinder sunlight absorption. By keeping the panels clean and well-maintained, solar cell performance is maximized, resulting in higher energy production and increased overall efficiency.
- Q: How are solar cells connected in a photovoltaic system?
- Solar cells are typically connected in a photovoltaic system in series or parallel configurations to create a larger, more efficient energy-generating unit.
- Q: What is the impact of solar cells on job creation?
- The impact of solar cells on job creation is significant. The solar industry has seen a rapid growth in recent years, leading to a surge in job opportunities. Solar cell manufacturing, installation, maintenance, and research and development have all created a wide range of employment opportunities. This growth has not only created jobs in the renewable energy sector but has also generated indirect employment in related industries. Additionally, the shift towards solar energy has encouraged innovation and entrepreneurship, further contributing to job creation. Overall, solar cells have had a positive impact on job creation by driving economic growth and fostering a sustainable workforce.
- Q: How are solar cells used in calculators?
- Solar cells are used in calculators to convert sunlight into electrical energy, which powers the device and allows it to function without the need for batteries or external power sources.
- Q: How do solar cells perform in areas with high levels of air humidity?
- Solar cells typically perform less efficiently in areas with high levels of air humidity. This is because the moisture in the air can create a barrier that reduces the amount of sunlight reaching the cells, thus decreasing their overall performance. Additionally, the moisture can cause corrosion and damage to the cells over time, further impacting their efficiency. However, advancements in solar cell technology are continually being made to address these issues and improve their performance in humid environments.
- Q: Are solar cells affected by shade?
- Yes, solar cells are affected by shade. Shade can significantly reduce the efficiency and output of solar cells. When solar cells are shaded, they receive less sunlight, which reduces the amount of energy they can convert into electricity. Therefore, it is important to ensure that solar panels are installed in a location where they receive maximum sunlight exposure throughout the day for optimal performance.
- Q: Can solar cells be used on spacecraft?
- Yes, solar cells can be used on spacecraft. In fact, solar cells are commonly utilized on spacecraft to generate electricity by converting sunlight into usable energy. This provides a reliable and renewable source of power for various systems and instruments onboard the spacecraft.
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Aerospace Grade Polycrystalline Solar Cells - High Efficiency, Low Price
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5000 pc
- Supply Capability:
- 8000000 pc/month
OKorder Service Pledge
OKorder Financial Service
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