A Silicon Wafer Solar Cell - High Current 18.2% Polycrystalline Silicon Solar Cell

A Silicon Wafer Solar Cell - High Current 18.2% Polycrystalline Silicon Solar Cell System 1

A Silicon Wafer Solar Cell - High Current 18.2% Polycrystalline Silicon Solar Cell

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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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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

High Current Solar Cell 18.2% Polycrystalline Silicon Solar Cell Price

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

High Current Solar Cell 18.2% Polycrystalline Silicon Solar Cell Price

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: How are solar silicon wafers protected from bird droppings?: Solar silicon wafers are typically protected from bird droppings through the use of anti-reflective coatings, which make the surface less attractive for birds to perch on. Additionally, some solar installations may utilize bird deterrents such as netting or spikes to prevent birds from landing and potentially causing damage or soiling the wafers.

Q: Can solar silicon wafers be used in concentrated photovoltaics (CPV)?: Yes, solar silicon wafers can be used in concentrated photovoltaics (CPV). CPV systems use lenses or mirrors to concentrate sunlight onto a small area of solar cells, increasing their efficiency. Silicon wafers are commonly used in CPV systems as they are a reliable and efficient material for converting sunlight into electricity.

Q: What is the role of the front contact on a solar silicon wafer?: The front contact on a solar silicon wafer serves as a conductive layer that allows the flow of electrical current generated by sunlight. It acts as a bridge between the solar cells and the external electrical circuit, enabling the extraction of the generated electricity for various applications. Additionally, the front contact also helps in protecting the underlying silicon material and enhancing the overall efficiency of the solar cell by reducing losses due to resistive effects.

Q: What are the different types of solar silicon wafers available?: There are primarily three types of solar silicon wafers available: monocrystalline, polycrystalline, and thin-film. Monocrystalline wafers are made from a single crystal structure, offering high efficiency and a uniform appearance. Polycrystalline wafers are made from multiple crystal structures, providing slightly lower efficiency but at a lower cost. Thin-film wafers are made by depositing a thin layer of semiconductor material onto a substrate, offering flexibility and lower manufacturing costs, although with lower efficiency compared to crystalline wafers.

Q: What is the role of front contacts on solar silicon wafers?: The role of front contacts on solar silicon wafers is to collect and extract the generated electricity from the solar cells. These contacts are typically made of metal fingers or grids that are placed on the front surface of the solar cell. They enable the flow of current and help in minimizing the resistance and losses, ensuring efficient electricity production from the solar panel.

Q: Are solar silicon wafers affected by shading?: Yes, solar silicon wafers are affected by shading. Shading can significantly reduce the efficiency and power output of solar panels as shaded areas on the silicon wafers block sunlight, leading to decreased electricity generation.

Q: I would like to ask the unit in the production of silicon production line workers do harm to the body? (is the production of monocrystalline silicon, polycrystalline silicon photovoltaic enterprises): You are asking whether this problem is more harmful to the body is broad, if you ask whether they produce toxic substances will wafer production process, I can tell you: the wafer production involves no chemical reaction, no poison produced.

Q: What is the surface hardness of monocrystalline silicon and polycrystalline silicon wafers: At this time, the hardness and elastic modulus of the oxide layer on the surface of monocrystalline silicon wafer were measured, which were about 10.2 GPa and 140.3 GPa, respectively. When the contact depth is about 32 ~ 60NM, silicon wafer contact stiffness and contact depth into a non linear relation between the hardness and elastic modulus increased sharply with the contact depth, show that the hardness and elastic modulus of monocrystalline silicon oxide film surface layer is affected by the matrix material.

Q: How do solar silicon wafers perform in different weather conditions?: Solar silicon wafers perform well in various weather conditions. They are designed to efficiently convert sunlight into electricity, making them suitable for both sunny and cloudy weather. Although their performance may be slightly reduced during cloudy or overcast days, they can still generate a significant amount of power. Additionally, solar silicon wafers are durable and can withstand extreme weather conditions such as rain, snow, and high temperatures, further ensuring their reliability and performance throughout the year.

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 exposure to sunlight, temperature variations, material defects, and chemical degradation. Continuous exposure to sunlight can cause the wafer to degrade over time due to the accumulation of photons and heat. Temperature variations, especially extreme heat, can lead to thermal stress and expansion/contraction cycles that can weaken the wafer. Material defects, such as impurities or structural imperfections, can decrease the wafer's performance and durability. Additionally, chemical degradation caused by exposure to moisture, pollutants, or corrosive substances can also contribute to the degradation of the wafer over its lifespan.

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