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Function of Solar Cells:
Size: 156.75x156.75mm
Thinkness: 160μm±20μm
Front(-)5×0.7mm straight section barbus, Blue SiNx anti-reflecting coating
Back(+) Full aluminum cover on the back; 5×1.7mm segmented back electrode
Size: 158.75x158.75mm
Thinkness: 160μm±20μm
Front(-)5×0.7mm straight section barbus, Blue SiNx anti-reflecting coating
Back(+) Full aluminum cover on the back; 5×1.7mm segmented back electrode 8
Size: 166x166mm
Thinkness: 160μm±20μm
Front(-)9×0.08mm straight section barbus, Blue SiNx anti-reflecting coating
Back(+) 1.6mm±0.05mm aluminum busbar mosaic 6 segments and 1.7mm siliver pad
Size: 182mm×182mmm(φ247mm±0.5mm)
Thinkness: 165μm±17.5μm
Front(-): Silicon oxide + blue silicon nitride compound anti-reflection coating(PID Free);Half- cut design;
Back(+) : Passivated layer (AlOx and SiNx) and Rear Contact (Al).
Size: 210mm×210mmm(φ295mm±0.5mm)
Thinkness: 165μm±17.5μm
Front(-): Silicon oxide + blue silicon nitride compound anti-reflection coating(PID Free);Half- cut design;
Back(+) : Passivated layer (AlOx and SiNx) and Rear Contact (Al).
Size: 182.2×182.2±0.5mm（φ247mm±0.5mm）
Thinkness: 130μm±13μm
Front(-)16*0.05±0.035 mm
Back(+) 16*0.05±0.035 mm
Size: 210mmX182mm±0.25mm， φ 272mm±0.25mm
Thinkness: 130μm±13μm
Front(-)16BB, 14pads, 168 fingers Barbus wide0.03±0.02 mm
Back(+) 16BB, 14pads, 192 fingers Barbus wide 0.03±0.02 mm
Size: 210mmX210mm±0.5mm ， φ 295mm±0.5mm
Thinkness: 130μm±13μm
Front(-)18BB, 14pads, 168 fingers Barbus wide0.03±0.02 mm
Back(+) 18BB, 14pads, 192 fingers Barbus wide 0.03±0.02 mm
Size: 182mmX182mm±0.5mm ， φ 247mm±0.5mm
Thinkness: 130μm±13μm
Front(-)0BB
Back(+) 19BB, 14pads, 192 fingers Barbus wide 9.58±0.02 mm
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All You Need To Know About Solar Cells
What is the basic principle of solar cells?
What are the characteristics of solar cells?
solar cells can directly convert sunlight into electricity, through the photovoltaic effect to realize the use of clean energy, conversion efficiency is an important performance indicator.
– Renewable and environmentally friendly: solar energy is an inexhaustible renewable energy source, the cell will not produce pollutants in the operation process, very environmentally friendly.
– Versatility and Flexibility: According to the demand, solar cells can be made into various specifications and sizes for residential, commercial, industrial and outdoor applications, with high adaptability.
– Long life and low maintenance: Solar panels typically have a life expectancy of 20 years or more, with low maintenance and manageable costs.
– Low environmental impact:Solar cells work well in different climatic conditions, especially high efficiency cell types that perform well in low-light conditions.
– Rapid technology iteration: With the development of technology, the efficiency, cost and durability of the cells are constantly improving, and new technologies such as N-type cells and heterojunction (HJT) cells are gradually becoming the mainstream of the industry.
How many types of solar cells are there by material?
1. Silicon based solar cells
– Material: Mainly made of silicon crystals, including monocrystalline, polycrystalline and amorphous silicon.
– Features:
o Monocrystalline: High efficiency (20%-24%), suitable for high-end applications.
o Monocrystalline silicon: High efficiency (20%-24%), suitable for high-end applications.
o Polycrystalline silicon: Cost-effective, slightly lower efficiency (15%-18%).
o Polycrystalline silicon: cost-effective, slightly lower efficiency (15%-18%).
o Amorphous silicon: low cost, low efficiency.
o Amorphous silicon: low cost, high flexibility, but lower efficiency (~10%-12%).
– Applications: Most common, widely used in residential, commercial and industrial applications.
2. Thin-film solar cells
– Material: Thin film materials such as amorphous silicon, copper indium gallium selenide (CIGS) and cadmium telluride (CdTe) are used.
– Features.
o Lightweight and flexible, can be used in special scenarios (e.g. building integration).
o Lower conversion efficiency (10%-15%), but low cost.
– Applications: Mobile devices, rooftops or other scenarios with high weight requirements.
3. Organic solar cells
– Material: Made of organic polymers or molecular materials.
– Features.
o Low manufacturing cost, lightweight, bendable, variety of colors.
o Low efficiency (5%-10%), stability needs to be improved.
– Applications: Wearable devices, portable devices, etc.
4. Chalcogenide solar cells
– Material: Organic-inorganic hybrid material using a chalcogenide structure.
– Features.
o Rapidly increasing laboratory efficiency (over 25%), low cost.
o Currently, stability and scale-up are still to be achieved.
– Applications: Potential future mainstream technology, can be stacked with silicon-based cells.
5. III-V compound solar cells
– Material: Gallium Arsenide (GaAs), Indium Phosphide (InP) and other III-V semiconductor materials are used.
– Characteristics: o Very high conversion efficiency (30%).
o Very high conversion efficiency (over 30%) for high-end applications. o Expensive to manufacture.
o Expensive to manufacture.
– Applications: Aerospace, such as satellites and space stations.
These categorizations are based on material properties, allowing you to choose the right type of solar cell for your application. If you are interested in the details or application of a certain material, you can discuss further!
How many types of solar cells can be categorized by technology route?
1. P-type solar cells
– Representative technologies: Chalcogenide-Si stacks, III-V stacks.
– Advantages: Ultra-high efficiency (theoretically up to 40% or more), absorbs a wider spectral range. Disadvantages: Complicated manufacturing process, high cost.
– Disadvantages: Complicated manufacturing process and high cost.
2. N-type solar cells
– Characteristics: Improved photovoltaic performance based on N-type silicon.
– Representative technologies: o TOPCon (Tunneling Oxidation Passivation Contact)
o TOPCon (Tunneling Oxidation Passivation Contact) cells: High conversion efficiency and good surface passivation.
o HJT (Heterojunction) cells: Combination of crystalline and amorphous silicon technologies.
o HJT (Hetero Junction) Cell: Combining crystalline and amorphous silicon technologies, strong bifacial power generation capability.
o IBC (Back Contact Cell): Electrodes are placed on the back side to increase the front side light absorption.
– Advantages: High efficiency, low attenuation, good low light performance.
– Disadvantages: Complicated manufacturing process and high cost.
3. Thin-film solar cells
– Characteristics: Based on thin-film materials.
– Representative technologies:
o Amorphous silicon thin film cells.
o Copper indium gallium selenide (CIGS) cells.
o Cadmium telluride (CdTe) cells.
– Advantages: Flexible, lightweight, suitable for building integration.
– Disadvantages: Lower conversion efficiency, not suitable for large-scale terrestrial power generation applications.
4. Chalcogenide solar cells
– Advantages: High photovoltaic conversion efficiency (lab efficiency has reached over 25%), low material cost, and flexible cells can be prepared.
– Disadvantages: Stability and durability in mass production are yet to be broken through.
5. III-V compound solar cells
– Advantages: High conversion efficiency (30%-40%), suitable for high performance scenarios.
– Disadvantages: Very high manufacturing cost, mostly used in aerospace field.
6. Laminated solar cells
– Representative technologies: Chalcogenide-Si stacks, III-V stacks.
– Advantages: Ultra-high efficiency (theoretically up to 40% or more), absorbs a wider spectral range. Disadvantages: Complicated manufacturing process, high cost.
– Disadvantages: Complicated manufacturing process and high cost.