4.28W Poly Solar Cell for 250W Solar Panel

Features:

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%

6x6 inch (156mm*156mm) Multi-crystalline solar cell

Packaging & Delivery
Packaging Details:
100 pcs per box, 1200 pcs per carton , MADE IN CHINA
Delivery Detail:
within 3 days after received payment
 
 
Physical characteristics


 Data under standard testing conditions(STC):1000W/Sq.M, AM1.5, 25ºC

 

Our Mission

 FLAGSUN emphasize the belief on maintaining a sustainable environment. We hope through our join efforts that we can build a better environment for human beings.

Shipping
 
1. Shipment shall be made only after PAYMENT is received.
2. Please do inform us your DETAILED ADDRESS AND CONTACT INFOMATION before shipment.
3. Shipment shall be made in THREE WORKING DAYS.
2. Shipment shall be via EMS, DHL, Fedex,UPS etc.



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.