Processing Steps Of Thin-film Solar Cell

1) SUBSTRATE PREPARATION

TCO coated glass -> Glass edge trimmer

2) SUBSTRATE CLEANING

TCO coated glass -> Glass washer

3) CUTTING WITH LASER

TCO coated glass -> Laser Scriber (1st) -> TCO-coated glass after cutting

4) SUBSTRATE CLEANING AFTER LASER CUTTING

TCO coated glass -> Glass washer

5) PUTTING 48 PCS OF SUBSTRATES INTO THE BOX CARRIER

Gas box - Gas substrate - power ladder - box carrier

6) 

Box carrier -> Preheat Oven

7) DEPOSITION OF THIN-FILM SI

PECVD system for a: Si/uc-Si deposition

8) Substrates

Box carrier -> Cool down oven

9) Output the substrates

Box carrier -> Glass substrate coated with thin-film Si -> Gas box

10)  CUTTING OF THIN-FILM SI

Laser scriber (2nd green)

11) BACK ELECTRODE

Cell -> sputtering system for ZnO/Al, Ag deposition -> cell -> Laser scriber (3rd green) -> cell with thin-film

12) TESTING THE MODULE PERFORMANCE

Solar simulator

13) LAMINATION

Trays with modules EVA and backing plates -> Laminator

Solar Cells Manufacturing Process

The cells manufacturing process should be based on first-class solar cell manufacturing equipments. Factory workers combine the patented technology of intensive back surface field with proprietary research and development, which makes us a top level international manufacturer of solar cells and PV modules.

Advanced diffusion techniques are normally adopted, in order to ensure the homogeneity inside of the cells, and reduce the matched losses among the cells. Advanced PECVD film forming technique to plate the surface of the cells with a deep blue film of SiN anti-reflective coating, which results in a beautiful look of the uniform colour, is also needed.

By utilizing high quality metal size to make the back surface field and electrode, factory can ensure the good conductivity and reliable adhesion force and very good solderability of the electrode. The high accurate printing pattern makes the automatic soldering of the cells easy.

The careful and consistent handpicking of identical and high efficiency solar cells reduces the matched losses of the cells and enhances the power of modules. The use of durable aluminium frames make easy mounting possible and enhances the load capability of the modules.

Normally the R&D team sets up before the company established.