High Current Monocrystalline Solar Silicon Wafer 17.6% Polycrystalline Silicon Solar Cell Price
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- Payment Terms:
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- Min Order Qty:
- 1000 pc
- Supply Capability:
- 100000 pc/month
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4 Bus Bars 156*156 17.6% efficiency poly solar cell
PHYSICAL CHARACTERISTICS
Dimension: 156mm x 156mm ± 0.5mm
Wafer Thickeness: 180um+20um and 200um+20um
Front(-) Four 1.2mm silver busbar
Silicon nitride blue anti-reflection coating
Back(+) aluminum back surface field
1.75mm(silver) wide segment soldering pads
Typical Electrical Characteristics
Efficiency | W(Pmpp) | V(Umpp) | A(Impp) | V(Uoc) | A(Isc) |
17.4-17.5 | 4.234 | 0.517 | 8.231 | 0.622 | 8.759 |
17.5-17.6 | 4.259 | 0.519 | 8.243 | 0.623 | 8.769 |
17.7-17.8 | 4.283 | 0.521 | 8.256 | 0.625 | 8.779 |
17.8-17.9 | 4.307 | 0.523 | 8.268 | 0.626 | 8.788 |
17.9-18.0 | 4.332 | 0.525 | 8.281 | 0.627 | 8.798 |
18.0-18.1 | 4.380 | 0.529 | 8.306 | 0.629 | 8.808 |
18.1-18.2 | 4.405 | 0.531 | 8.318 | 0.632 | 8.818 |
18.2-18.3 | 4.429 | 0.533 | 8.331 | 0.633 | 8.837 |
18.3-18.4 | 4.453 | 0.535 | 8.344 | 0.634 | 8.847 |
18.4-18.5 | 4.478 | 0.537 | 8.356 | 0.636 | 8.856 |
18.5-18.6 | 4.502 | 0.539 | 8.369 | 0.637 | 8.866 |
Efficiency | W(Pmpp) | V(Umpp) | A(Impp) | V(Uoc) | A(Isc) |
20.90-21.00 | 5.06 | 0.557 | 9.007 | 0.653 | 9.688 |
20.80-20.90 | 5.04 | 0.556 | 9.062 | 0.652 | 9.683 |
20.70-20.80 | 5.02 | 0.554 | 9.055 | 0.651 | 9.684 |
20.60-20.70 | 4.99 | 0.552 | 9.033 | 0.651 | 9.672 |
20.50-20.60 | 4.97 | 0.550 | 9.002 | 0.650 | 9.673 |
20.40-20.50 | 4.94 | 0.548 | 9.012 | 0.649 | 9.674 |
20.30-20.40 | 4.92 | 0.546 | 9.009 | 0.649 | 9.655 |
20.20-20.30 | 4.89 | 0.543 | 9.012 | 0.648 | 9.634 |
20.10-20.20 | 4.87 | 0.541 | 8.998 | 0.648 | 9.617 |
20.00-20.10 | 4.85 | 0.540 | 8.977 | 0.647 | 9.600 |
*Data under standard testing conditional (STC):1,000w/m2,AM1.5, 25°C , Pmax:Positive power tolerance.
3 Bus Bars 156*156 17.4% efficiency poly solar cell
Dimension: 156 mm x 156 mm ± 0.5 mm
Wafer Thickeness: 156 mm x 156 mm ± 0.5 mm
Typical Electrical Characteristics:
| Efficiency code | 1660 | 1680 | 1700 | 1720 | 1740 | 1760 | 1780 | 1800 | 1820 | 1840 | 1860 |
| Efficiency (%) | 16.6 | 16.8 | 17.0 | 17.2 | 17.4 | 17.6 | 17.8 | 18.0 | 18.2 | 18.4 | 18.6 |
| Pmax (W) | 4.04 | 4.09 | 4.14 | 4.19 | 4.23 | 4.28 | 4.33 | 4.38 | 4.43 | 4.48 | 4.53 |
| Voc (V) | 0.612 | 0.615 | 0.618 | 0.621 | 0.624 | 0.627 | 0.629 | 0.63 | 0.633 | 0.635 | 0.637 |
| Isc (A) | 8.42 | 8.46 | 8.51 | 8.56 | 8.61 | 8.65 | 8.69 | 8.73 | 8.77 | 8.81 | 8.84 |
| Imp (A) | 7.91 | 7.99 | 8.08 | 8.16 | 8.22 | 8.27 | 8.33 | 8.38 | 8.43 | 8.48 | 8.53 |
* Testing conditions: 1000 W/m2, AM 1.5, 25 °C, Tolerance: Efficiency ± 0.2% abs., Pmpp ±1.5% rel.
* Imin : at 0.5 V
Production:
Package:
FAQ:
1. Q: Do you have your own factory?
A: Yes, we have. Our factory located in Jiangsu
2. Q: How can I visit your factory?
A: Before you visit,please contact us.We will show you the route or arrange a car to pick you up.
3. Q: Do you provide free sample?
A: Commenly we provide paid sample.
4. Q: Could you print our company LOGO on the nameplate and package?
A: Yes, we accept it.And need an Authorization Letter from you.
5. Q: Do you accept custom design on size?
A: Yes, if the size is reasonable.
6. Q: How can I be your agent in my country?
A: Please leave feedback. It's better for us to talk about details by email.
7. Q: Do you have solar project engineer who can guide me to install system?
A: Yes, we have a professional engineer team. They can teach you how to install a solar system.
- Q: What is the role of passivation on solar silicon wafers?
- The role of passivation on solar silicon wafers is to improve the efficiency and performance of the solar cells. Passivation involves the creation of a thin oxide layer on the surface of the silicon wafer, which acts as a protective barrier. This layer helps to reduce surface recombination, which is the loss of charge carriers, and prevents the formation of defects that can impair the cell's performance. Passivation also helps in maximizing the absorption of sunlight and enhances the overall electrical properties of the solar cell, resulting in higher conversion efficiency and improved long-term stability.
- Q: How are solar silicon wafers affected by temperature coefficient?
- Solar silicon wafers are affected by temperature coefficient in that their electrical performance, specifically their power output, is influenced by temperature changes. The temperature coefficient indicates how the efficiency of solar panels decreases with increasing temperature. A higher temperature coefficient means that the power output of the solar panels decreases more rapidly as the temperature rises. Therefore, understanding and accounting for the temperature coefficient is crucial in accurately assessing and predicting the performance of solar silicon wafers under different temperature conditions.
- Q: Can solar silicon wafers be used in solar-powered data centers?
- Yes, solar silicon wafers can be used in solar-powered data centers. These wafers are the building blocks of solar panels, which generate electricity using the sun's energy. Solar-powered data centers can harness this renewable energy source to power their operations, reducing their reliance on traditional electricity grids and contributing to a more sustainable and environmentally friendly approach to data storage and processing.
- Q: How is the purity of silicon determined for solar wafers?
- The purity of silicon for solar wafers is determined through a combination of various techniques, including chemical analysis, spectroscopy, and electrical measurements. These methods assess the concentration of impurities such as metals, oxygen, and carbon in the silicon material. Additionally, the resistivity of the silicon is measured, as high resistivity indicates high purity. By employing these techniques, manufacturers can ensure that the silicon used for solar wafers meets the required purity standards for efficient solar cell production.
- Q: What are the main defects in solar silicon wafers?
- The main defects in solar silicon wafers can include impurities such as metal contaminants or oxygen vacancies, crystallographic defects like dislocations or stacking faults, and surface defects like scratches or cracks. These defects can impact the efficiency and performance of solar cells, reducing their ability to convert sunlight into electricity.
- Q: How is the electrical conductivity of a solar silicon wafer measured?
- The electrical conductivity of a solar silicon wafer is typically measured using a four-point probe technique. This involves placing four evenly spaced probes on the surface of the wafer and passing a known current through the outer probes while measuring the voltage drop across the inner probes. The resistivity of the wafer can then be calculated using Ohm's law and the dimensions of the wafer.
- Q: Can solar silicon wafers be used in solar-powered wearable devices?
- Yes, solar silicon wafers can be used in solar-powered wearable devices. These wafers are commonly used in solar panels and can be adapted for use in smaller, portable devices such as wearables. By integrating solar silicon wafers into the design of wearable devices, they can harness solar energy to power various functions or even charge the device's battery. This enables wearables to become more self-sustaining and reduce the reliance on traditional charging methods.
- Q: How are solar silicon wafers protected from potential theft?
- Solar silicon wafers are protected from potential theft through a combination of security measures such as surveillance systems, secured storage facilities, and restricted access control. Additionally, many manufacturers employ tracking technologies and unique identification codes to trace the movement of wafers and deter theft.
- Q: What is the effect of surface passivation on solar silicon wafers?
- Surface passivation on solar silicon wafers has a significant positive effect on their efficiency and overall performance. It helps minimize surface recombination of electrons and holes, reducing energy losses and improving charge carrier lifetimes. This leads to enhanced solar cell efficiency, increased power output, and improved long-term stability. Surface passivation also helps reduce the impact of impurities and defects on the wafer surface, resulting in better light absorption and conversion of sunlight into electricity.
- Q: What are the main factors that affect the lifespan of a solar silicon wafer?
- The main factors that affect the lifespan of a solar silicon wafer include the quality of the silicon material used, the manufacturing process, exposure to external factors such as temperature and humidity, and the level of stress the wafer is subjected to during operation. Additionally, proper handling, installation, and maintenance practices also play a significant role in determining the lifespan of a solar silicon wafer.
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High Current Monocrystalline Solar Silicon Wafer 17.6% Polycrystalline Silicon Solar Cell Price
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 100000 pc/month
OKorder Service Pledge
OKorder Financial Service
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