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Crystalline silicon solar cell module production
Crystalline silicon solar cell module production
As crystalline silicon solar cells themselves are easy to break and corrode, if exposed directly to the atmosphere, the photoelectric conversion efficiency will be reduced due to humidity, dust, acid rain and other factors, and the cells will be easily damaged. Therefore, crystalline silicon solar cells generally must be made into a flat structure by … Read More
Category Detection
Principle of classification detection ①Category detection design. The solar cell is to receive sunlight irradiation of specific irradiance at a certain temperature, while changing the load of the external circuit, measuring the current I of the load and the voltage U at the cell end, drawing the relationship curve between the two, and then calculating … Read More
Screen Printing, Solar energy utilization and solar cell
Screen Printing
Screen printing process Screen printing is the process of attaching the pattern you want to print to the screen and using the paste to print through the screen. In solar cell printing, the cell is placed under the screen and a layer of paste is applied to the screen. In solar cell printing, the cell … Read More
Crystalline silicon solar cell production
What exactly is etching used for?
1. Dephosphorylated silica glass A layer of SiO2 containing phosphorus, also known as phosphorus silica glass, is removed before etching to prevent it from affecting the subsequent process, mainly by removing the SiO2 layer with HF. which relies on the process of HF reacting with SiO2 to form complexes.SiO2+6HF→H2SiF6+2H2O Wet acid etching Because the wafer … Read More
Solar energy utilization and solar cell
What is diffusion?
1.Diffusion principle analysis The P-N junction is the core process in the solar cell preparation process. The cell is able to generate electricity because of the photoelectric effect produced by the P-N junction, and the purpose of diffusion is to produce the P-N junction. Nowadays, industrial production is generally done by diffusing phosphorus on P-type … Read More
Influence of main parameters of industrial flocking on reflectivity
The parameters of industrial flocking monitoring mainly include the following: temperature, liquid medicine addition, pump flow and belt speed (the speed of silicon wafer in the flocking machine). According to the general experience in industrial production, the more obvious the surface reaction effect of silicon wafer is, the more obvious the suede will be, and … Read More
Crystalline silicon solar cell production
What you must know about polysilicon cell texturing technology
In the process of preparing crystalline silicon cells, in order to effectively improve the absorption of sunlight on the silicon surface and improve the efficiency of solar cells, it is a relatively effective process to increase the anti-reflection effect by forming uneven pits on the surface of silicon wafers. Studies have shown that the spectral … Read More
What are the steps for cleaning silicon wafers?
The cleaning of silicon wafers is the final finish of processing silicon wafers, but in fact, it is involved in the grinding and cutting process of silicon wafers. After removing the light, the polished silicon wafers also need to be dewaxed and cleaned. The cleaned silicon wafer can better exert the device performance of the … Read More
Focus on wafer grinding and heat treatment
For the sliced silicon wafers, very few can be used directly, and most of them need to be processed on the corners of the silicon wafers. In order to make the corners smooth, they need to be ground, or even heat treated to change the stress structure. Chamfering the edge of the silicon wafer Before … Read More
Multi-wire cutting system adjustment and preparation
Select and install a suitable guide wheel In multi-wire cutting, the design of the groove pitch of the guide wheel mainly depends on the target thickness of the silicon wafer, the diameter of the steel wire, the grain size of the abrasive and the performance of the equipment. In actual production, the diameter of the … Read More