Innovative research and development of nickel paste for the front diffusion layer electrode of crystalline silicon solar cells

In today's rapidly developing renewable energy technology, crystalline silicon solar cells have become an important component of the solar power generation field due to their high efficiency, stability, and environmental friendliness. In the production process of crystalline silicon solar cells, the preparation of electrodes is particularly crucial. This article will provide a detailed introductionAdvanced Institute of TechnologyInnovative research and development achievements in nickel paste for the front diffusion layer electrode of crystalline silicon solar cells.

The main function of the front diffusion barrier electrode in crystalline silicon solar cells is to prevent copper atoms in the metal gate lines from diffusing into the silicon substrate, thereby ensuring the stability and long-term reliability of the cell. Traditional electrode preparation materials, such assilver pasteAlthough it has excellent performance, its high cost limits its promotion in large-scale applications. Therefore, developing a low-cost and high-performance diffusion barrier electrode material has become a research hotspot in the industry.

In this context, Advanced Institute Technology has successfully developed a new type of nickel paste electrode for the front diffusion barrier layer of crystalline silicon solar cells, leveraging its profound accumulation in the field of new energy materials. The nickel slurry is mainly composed of nano nickel powder, supplemented with appropriate amounts of glass powder and organic carriers. Through a carefully designed preparation process, the material properties have been optimized and the cost has been reduced.

Specifically, thenickel pasteThe preparation process includes the following key steps: firstly, place the organic carrier in a constant temperature container and heat and stir it to reach the appropriate working temperature; Then, add nano nickel powder and glass powder to the container in sequence, and ensure the uniformity and stability of the material by precisely controlling the proportion and mixing conditions of each component; Next, place the prepared mixture in a three roll grinder for fine grinding to improve the dispersibility and fineness of the material; Finally, impurities are removed through screen filtration to obtain pure nickel slurry.

Compared with traditional silver paste, this new nickel paste has significant advantages. Firstly, nano nickel powder has a higher specific surface area and activity, which can effectively prevent the diffusion of copper atoms; Secondly, the addition of glass powder can improve the bonding force between the electrode and the silicon substrate, enhancing the stability and reliability of the electrode; Finally, the selection and optimization of organic carriers enable nickel paste to have better printability and sintering performance, facilitating the formation of uniform and dense electrode layers on the surface of crystalline silicon solar cells.

In practical applications, the nickel slurry has been successfully used in the preparation of the front diffusion barrier electrode for crystalline silicon solar cells. The experimental results show that the electrode prepared using this nickel paste has excellent diffusion resistance and good electrical properties, which can effectively improve the photoelectric conversion efficiency and long-term stability of crystalline silicon solar cells. In addition, the cost of this nickel paste is significantly reduced compared to traditional silver paste, which is beneficial for reducing the manufacturing cost of crystalline silicon solar cells and promoting their application on a larger scale.

In summary, Advanced Institute Technology has made significant progress in the research and development of nickel paste for the front diffusion layer electrode of crystalline silicon solar cells. The successful research and application of this nickel slurry not only provides a new option for the preparation of electrodes for crystalline silicon solar cells, but also makes a positive contribution to promoting the development of renewable energy technology. In the future, with the continuous advancement of technology and the expansion of the market, I believe that thisNew nickel slurryIt will demonstrate its unique advantages and value in more fields.