Portable Second Hand Solar Panels 1000 Millimeter Length Fit Rooftop PV Projects

Discount Monocrystalline Polycrystalline Solar System Solar Panel Solar Cell

PRODUCTS CHARACTERISTICS

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.

   Who Are We & What We Do?

   Our company,Junhui Imp & Exp Trade Co.,Ltd,located in Suzhou, about an hour's drive to Shanghai.

    We’re primary agent of such famous brands of PV Solar Modules as Suntech,YINGLI,ET Solar etc. Our products are ideal for all types of installation from rooftop, stand-alone systems,residential and commercial installation to photovoltaic parks. Our superiority is the sufficient stock,flexible source of goods and competitive price.