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What’s Solar Cell?
Solar cell, also known as photovoltaic cells, are devices that convert sunlight directly into electricity. They are a key component in Solar panel and are critical for harnessing renewable energy. There are two primary types of solar cells: monocrystalline (mono) solar cell and polycrystalline (poly) solar cells.
With advancements in solar technology, the traditional mono solar cell has evolved into cutting-edge variations such as PERC solar cells, TOPCon solar cells, and BC solar cells, each offering unique advantages in efficiency, durability, and performance. These innovations are shaping the future of renewable energy, catering to diverse applications and energy demands.
Type of MONO Solar Cell
By size of Mono Solar cell
- 125*125mm Solar cell
- 158*158mm 5BB Solar cell
- 166*166MM 5BB Solar cell
- 182*182MM MBB Solar cell
- 210*210MM MBB Solar cell
By Technology of Mono Solar Cell
- Poly Solar Cell
- Mono Solar Cell
- PERC Mono Solar Cell
- TOPCON Mono Solar CELL
- BC Solar Cell
Revolution in Solar cells: The key technologies powering our world
Mono Solar cell
Mono Solar Cell (short for Monocrystalline Solar Cell) is a type of photovoltaic (PV) cell made from a single, continuous crystal structure of silicon. It is one of the most common and efficient types of solar cells used in solar panels today.
- High purity silicon: Made using mono-crystalline silicon, which is a high-purity form of silicon.
- Appearance: Typically dark black in color with smooth, rounded edges.Panels often have a uniform look, making them aesthetically appealing.
- Efficiency: Known for high efficiency, usually ranging between 18-22%, depending on the quality and technology. High efficiency means more electricity generated per unit area.
- Performance : Relatively better performance at high temperatures compared to poly-crystalline cells.
Perc Solar cell
PERC (Passivated Emitter and Rear Contact) solar cells are revolutionizing the solar panel industry with their efficiency and advanced design.
- Enhanced Energy Output: PERC cells produce 6-12% more energy compared to traditional solar cells due to their improved structure.
- Innovative Design: The passivation layer on the rear side reduces electron recombination, allowing more electrons to contribute to power generation. Improved light absorption as the passivated rear reflects unused light back into the cell, giving it another chance to generate electricity.
- Thermal Performance: PERC cells perform better in high-temperature environments, which is crucial for maintaining efficiency in hot climates.
TOPCON Solar Cell
TOPCon Solar Cell (short for Tunnel Oxide Passivated Contact solar cell) is an advanced type of photovoltaic (PV) cell that improves upon traditional solar cell designs by incorporating a highly efficient rear-contact structure. It represents a significant technological advancement in the solar industry, offering higher efficiency and better performance compared to conventional solar cells like monocrystalline and PERC cells.
- A very thin layer of silicon oxide on the rear side of the cell reduces electron recombination, which is a major source of energy loss in solar cells.
- Doped Poly-silicon Layer:Placed over the tunnel oxide layer, this acts as a highly conductive layer to capture and transport electrons more efficiently.
- Enhanced Efficiency:TOPCon cells typically achieve 23-25% efficiency, significantly higher than standard mono-crystalline or PERC cells.
- Reduced Light-Induced Degradation (LID):The advanced structure minimizes energy losses caused by the interaction of sunlight with impurities in the silicon.
- Better Performance at High Temperatures: The superior passivation and contact design improve performance in high-temperature environments.
BC Solar Cell
BC Solar Cell (short for Back Contact Solar Cell) is a type of photovoltaic (PV) cell that features all electrical contacts on the rear side of the cell, leaving the front surface entirely free for light absorption. This design improves the cell’s efficiency, aesthetics, and overall performance.
- Back Contact Design: Both positive and negative electrical contacts are placed on the back of the cell.
- This eliminates shading caused by front-side grid lines in conventional cells, maximizing light absorption.
- High Efficiency: By eliminating shading, BC solar cells achieve higher efficiency, typically ranging from 22-26%, depending on the specific design and materials.
- Aesthetic Appearance: The absence of front contacts gives the cell a sleek, uniform look, often preferred in applications where aesthetics matter, such as residential rooftops or architectural integrations.
- Improved Performance: Reduced electrical resistance and optimized charge collection due to advanced contact design. Excellent performance in low-light and high-temperature conditions.
- Variants: Includes technologies like IBC (Interdigitated Back Contact) and Metal Wrap-Through (MWT) solar cells, which further optimize the back-contact design.
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