Silicon Wafer Solar Cell Panels - High Quality A Grade Mono Crystalline 5V 18.4% Solar Cells

Silicon Wafer Solar Cell Panels - High Quality A Grade Mono Crystalline 5V 18.4% Solar Cells System 1

Silicon Wafer Solar Cell Panels - High Quality A Grade Mono Crystalline 5V 18.4% Solar Cells

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1000 pc

Supply Capability:: 100000 pc/month

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Specifications

hot sale solar cell
1.16.8%~18.25% high efficiency
2.100% checked quality
3.ISO9001/ISO14001/TUV/CE/UL
4.stable performance

We can offer you the best quality products and services, don't miss !

POLY6'(156*156)

Polycrystalline Silicon Solar cell

Physical Characteristics

Dimension: 156mm×156mm±0.5mm

Diagonal: 220mm±0.5mm

Thickness(Si): 200±20 μm

Front(-) Back(+)

Blue anti-reflecting coating (silicon nitride); Aluminum back surface field;

1.5mm wide bus bars; 2.0mm wide soldering pads;

Distance between bus bars: 51mm . Distance between bus bars :51mm .

Electrical Characteristics

Efficiency(%)	18.00	17.80	17.60	17.40	17.20	16.80	16.60	16.40	16.20	16.00	15.80	15.60
Pmpp(W)	4.33	4.29	4.24	4.19	4.14	4.09	4.04	3.99	3.94	3.90	3.86	3.82
Umpp(V)	0.530	0.527	0.524	0.521	0.518	0.516	0.514	0.511	0.509	0.506	0.503	0.501
Impp(A)	8.159	8.126	8.081	8.035	7.990	7.938	7.876	7.813	7.754	7.698	7.642	7.586
Uoc(V)	0.633	0.631	0.628	0.625	0.623	0.620	0.618	0.617	0.615	0.613	0.611	0.609
Isc(A)	8.709	8.677	8.629	8.578	8.531	8.478	8.419	8.356	8.289	8.220	8.151	8.083

Solar Cell High Quality A Grade Cell Monorystalline 5v 18.4%

MONO5'(125*125mm)165

Monocrystalline silicon solar cell

Physical Characteristics

Dimension: 125mm×125mm±0.5mm

Diagonal: 165mm±0.5mm

Thickness(Si): 200±20 μm

Front(-) Back(+)

Blue anti-reflecting coating(silicon nitride); Aluminum back surface field;

1.6mmwide bus bars; 2.5mm wide soldering pads;

Distance between bus bars: 61mm . Distance between bus bars :61mm .

Electrical Characteristics

Efficiency(%)	19.40	19.20	19.00	18.80	18.60	18.40	18.20	18.00	17.80	17.60	17.40	17.20
Pmpp(W)	2.97	2.94	2.91	2.88	2.85	2.82	2.79	2.76	2.73	2.70	2.67	2.62
Umpp(V)	0.537	0.535	0.533	0.531	0.527	0.524	0.521	0.518	0.516	0.515	0.513	0.509
Impp(A)	5.531	5.495	5.460	5.424	5.408	5.382	5.355	5.328	5.291	5.243	5.195	4.147
Uoc(V)	0.637	0.637	0.636	0.635	0.633	0.630	0.629	0.629	0.628	0.626	0.626	0.625
Isc(A)	5.888	5.876	5.862	5.848	5.839	5.826	5.809	5.791	5.779	5.756	5.293	5.144

Solar Cell High Quality A Grade Cell Monorystalline 5v 18.4%

FAQ:

Q:How can i get some sample?

A:Yes , if you want order ,sample is not a problem.

Q:How about your solar panel efficency?

A: Our product efficency around 17.25%~18.25%.

Q:What’s the certificate you have got?

A: we have overall product certificate of ISO9001/ISO14001/CE/TUV/UL

Q:What is the role of a bypass diode in a solar silicon wafer?: The role of a bypass diode in a solar silicon wafer is to provide an alternate pathway for the flow of current in case of shading or malfunctioning of individual solar cells. This helps prevent power loss and damage to the entire solar panel by allowing the unaffected cells to continue generating electricity.

Q:How does the quality of a solar silicon wafer affect solar cell performance?: The quality of a solar silicon wafer significantly affects solar cell performance. A high-quality wafer ensures better efficiency and durability in converting sunlight into electricity. It affects the cell's ability to capture and absorb sunlight, reducing losses due to reflection and recombination of electrons. A low-quality wafer may contain impurities or defects that can hinder the flow of electrons, reducing the overall performance and power output of the solar cell. Therefore, investing in high-quality silicon wafers is crucial for maximizing the efficiency and long-term performance of solar cells.

Q:What is the impact of impurities on the reliability of solar silicon wafers?: The presence of impurities in solar silicon wafers can significantly impact their reliability. Impurities can affect the electrical properties of the wafer, leading to decreased efficiency and performance of the solar cells. They can cause non-uniformity in the material, resulting in variations in cell performance within a module or across different modules. Moreover, impurities can also induce defects and degradation mechanisms that can reduce the lifespan of the solar cells. Therefore, minimizing impurities during the manufacturing process is crucial for ensuring the long-term reliability and efficiency of solar silicon wafers.

Q:What is the role of surface passivation in solar silicon wafers?: The role of surface passivation in solar silicon wafers is to reduce or eliminate surface recombination, which is the process by which charge carriers (electrons and holes) recombine at the surface of the wafer, leading to a loss of efficiency in solar cell performance. Passivation involves applying a thin layer of material, such as silicon nitride or aluminum oxide, to the surface of the wafer to create a barrier that prevents the recombination of charge carriers. This helps to improve the efficiency and overall performance of the solar cell by reducing the loss of generated electricity due to surface recombination.

Q:How are solar silicon wafers protected from thermal damage?: Solar silicon wafers are protected from thermal damage through the use of various techniques such as passivation, anti-reflective coatings, and encapsulation. Passivation involves applying a thin layer of protective material on the silicon surface to prevent oxidation and corrosion. Anti-reflective coatings are used to minimize the reflection of sunlight, reducing heat absorption and thermal stress. Encapsulation refers to the process of encapsulating the solar cells in a protective material, such as glass or plastic, which acts as a barrier against thermal damage and environmental factors. These combined measures ensure that solar silicon wafers remain undamaged and can efficiently convert sunlight into electricity.

Q:How is the weight of a solar silicon wafer reduced?: The weight of a solar silicon wafer can be reduced by thinning the wafer through a process called wafer thinning or wafer dicing. This involves removing a portion of the silicon material from the wafer, thereby reducing its thickness and weight while maintaining its functionality.

Q:What is the global production capacity of solar silicon wafers?: The global production capacity of solar silicon wafers is approximately X gigawatts per year.

Q:How much energy is needed to produce a solar silicon wafer?: The amount of energy required to produce a solar silicon wafer can vary depending on several factors such as the manufacturing process, technology used, and efficiency of the production facility. However, on average, it is estimated that around 250-350 kilowatt-hours (kWh) of energy are needed to manufacture one square meter of a standard silicon wafer for solar panels.

Q:Are solar silicon wafers flexible?: No, solar silicon wafers are not flexible. They are typically rigid and brittle in nature.

Q:How are solar silicon wafers tested for resistivity and sheet resistance?: Solar silicon wafers are tested for resistivity and sheet resistance using a variety of methods. One common technique is the four-point probe method, where four evenly spaced probes are placed on the surface of the wafer. A known current is passed between the outer probes, while the voltage is measured between the inner probes. By applying Ohm's law, the resistivity and sheet resistance can be calculated based on the measured current and voltage values. Another method involves using a Hall effect measurement, where a magnetic field is applied perpendicular to the wafer's surface and the resulting voltage is measured. This allows for the determination of the resistivity and sheet resistance. These testing methods help ensure the quality and performance of solar silicon wafers in photovoltaic applications.

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