A Grade 18.0 Poly Solar Cell 4bb
|1,200-4,999 5,000-9,999 10,000-19,999 20,000-29,999 30,000+|
|FOB Unit Price:||US $0.84 US $0.82 US $0.81 US $0.79 US $0.77|
|Purchase Qty. (Pieces)||FOB Unit Price|
|Payment Terms:||L/C, T/T, D/P, Western Union, Paypal|
- Model NO.: FSC-P156-002
- Number of Cells: 1
- Condition: New
- Material: Polycrystalline Silicon
- Type: Poly
- Grade: a
- OEM: Available
- Transport Package: 1200PCS/Carton
- Origin: China
- Warranty: 25 Years
- Application: Solar Panel
- Certification: ISO, CE
- Name: Solar Cell
- Model: 4bb
- Efficiency: 18.0%
- Trademark: Flagsun
- Specification: FSC-P156-002
- HS Code: 8541402000
1.High conversion efficiency resulting in superior power output performance.
2.Outstanding power output even in low light or high temperature conditions
3.Optimized design for ease of soldering and lamination
4.Long-term stability,reliability and performance
5.Output power tolerance of +/-3%
|Efficiency||Ppm(W)||Max Ipm(A)||Min Ipm(A)||Max Isc(A)||Voc(V)|
*Data under standard testing conditional (STC):1,000w/m2,AM1.5, 25°C , Pmax:Positive power tolerance
|Product||Polycrystalline silicon solar cell|
|Front||Blue silicon nitride antireflection coatings 1.4~1.6mm silver busbar ,continuous or discrete 3BB or 4BB|
|Back||Full-surface aluminum back-surface field 2.6mm silver continuous or discrete soldering pads|
Solar Cell Production Line
Cleaning & Texturing: Wafers are cleaned with industrial soaps and form square-based pyramids also called texture. The texturization helps to reduce the reflection of sunlight.
Diffusion: Wafers that have been pre-droped with boron during the casting process are then given a negative(n-type) surface characteristic by diffusing them with a phosphorus source at high temperature, which in turn creats the negative/positive(n-p) junction.
Etching: Phosphorus diffuses not only into the desired wafer surface but also into the side and the opposite surface to form PN. This gives a shunt path between the cell front and rear. Removal of the path around the wafer edge/edge junction isolation is named etching.
PECVD: By PECVD equipment, the wafers are coated with anti-reflection coating(ARC). It's the blue silicion nitride film to reduce reflection and promote absorption of light.
Printing & Heating: it was adopted by printing paste with screen technology to print the electrodes of silicion solar, and form a good ohmic contact.
Testing & Sorting: It means classifying the cells according to their efficiency tested under the simulated sunlight.