Crystalline silicon solar cell production

What exactly is etching used for?

admin on September 29, 2022 0 Comments • Tags: #precipitationfluxdeslaggingrefiningmethod

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?

admin on September 28, 2022 0 Comments

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

Solar cell silicon material

Influence of main parameters of industrial flocking on reflectivity

admin on July 15, 2022 0 Comments • Tags: #crystallinesiliconsolarcell

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

What you must know about polysilicon cell texturing technology

Crystalline silicon solar cell production

What you must know about polysilicon cell texturing technology

admin on June 16, 2022 0 Comments • Tags: #cleaningandtexturing #crystallinesiliconsolarcell

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?

Solar cell silicon material

What are the steps for cleaning silicon wafers?

admin on June 11, 2022 0 Comments • Tags: #crystallinesiliconsolarcell #impuritiesinsilicon

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

Solar cell silicon material

Focus on wafer grinding and heat treatment

admin on June 1, 2022 0 Comments • Tags: #wafergrindingandheattreatment

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

Solar cell silicon material

Multi-wire cutting system adjustment and preparation

admin on May 23, 2022 0 Comments • Tags: #crystallinesiliconsolarcell #multiwirecutting

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

Crystal cutting-inner circle cutting process and multi-wire cutting of single crystal silicon

Physical method solar cell polysilicon

Crystal cutting-inner circle cutting process and multi-wire cutting of single crystal silicon

admin on May 10, 2022 0 Comments • Tags: #innercirclecuttingprocess #multiwirecuttingofsinglecrystalsilicon

Yanmo Kaifang lays the foundation for the in-depth cutting of crystals, and crystal cutting is to use special equipment such as internal slicers or wire cutting to cut silicon crystals into thin slices that meet the requirements. At the same time, the silicon single crystal wafer used for device production also has certain requirements on … Read More

How does the grinding and squaring of crystals work?

Physical method solar cell polysilicon

How does the grinding and squaring of crystals work?

admin on April 24, 2022 0 Comments • Tags: #crystal #siliconwafer

Silicon wafer is the basic material for making crystalline silicon solar cells, and it is also the most expensive part of crystalline silicon solar cells. Wafer cutting is a key process in solar cell manufacturing. This process is used to process solid silicon ingots of monocrystalline or polycrystalline silicon. At present, a wire saw is … Read More

What are the problems with solar grade polysilicon?

Physical method solar cell polysilicon

What are the problems with solar grade polysilicon?

admin on April 18, 2022 0 Comments • Tags: #solargradesilicon

The rapid development of solar cells has led to a tight supply of polysilicon raw materials, which makes the quality of raw materials entering the market different. Some fake and shoddy products flow into the market, and commercial disputes occur from time to time. As a result, the quality of products produced by downstream solar … Read More