In fact, the color of PV Solar Panel is substantially affected by velvet, including flower, red, and some yin and yang flicks.

    The red flakes are substantially caused by the low quantum of texturingcorrosion. However, the damaged subcaste of the silicon wafer won't be fully removed, performing in the overall red color after PE coating, If the quantum of texturing erosion is lower than 3.

   The so-called flower chip is caused by the inordinate quantum of texturing erosion. Generally speaking, when the texturing erosion quantum is advanced than4.5, the silicon wafer is original to be polished, the carpeted cell is bright and the grain boundaries are also fairly egregious.

   For the yin and yang wastes, it can be divided into the following two situations, one is the absorption situation, and the other is the divagation of the erosion quantum between each track.

   The problem of absorption is caused by the influence of the position of the front and hinder breakers and the frontal cocoon during the product process. When the silicon wafer enters the texturing tank, there's a time difference between the chemical liquid and the silicon wafer. In this way, the erosion quantum of the area where the silicon wafer first connects the chemical liquid is bound to be more advanced than the area that connects the chemical liquid latterly. The difference in the quantum of erosion will inescapably lead to inconsistent suede effect on the face of the silicon wafer, and there will be a certain color difference after PE coating. In order to insure the absorption effect, the breakers and baffles of the texturing tank need to be acclimated. For polycrystalline silicon cells, dark blue is the most common color, and monocrystalline silicon is black.

   Through process adaptation, the below-mentioned color divagation problem can be effectively answered. In terms of the overall appearance of photovoltaic solar panels of good quality, the face color of the cells in the same batch of modules should be invariant, without egregious color difference, broken grid, disfigurement damage, solder joint oxidation spots, and other marvels. Each string of cells and hitching strips in the module are neatly welded, with no divagation in welding, the distance between cell strings is invariant, there's no egregious divagation, and there's no drum accumulation and oxidation on the face of the welding strip. There are no bubbles or delamination in the sealing subcaste of the module, the layers are clear and transparent, and there's no dirt or variegation outside. In addition, the aluminum frame of the module should be clean and free of erosion spots, and the interface should be compact without egregious gaps, sharps, churrs, and silicone seals. The edges should be indeed and there should be no original cement accumulation, the junction box should be easily marked, the cling should be firm, and the buckles should be complete and firm.