Among all the thin film solar cell materials, CIGS (copper indium gallium selenium) solar cell has the highest absorption coefficient of visible light, and the consumption of raw materials is far lower than that of traditional crystalline silicon solar cells. Compared with crystalline silicon solar cells with high efficiency and high cost and amorphous silicon solar cells with low efficiency and low cost, CIGS solar cells have multiple advantages of high efficiency, low cost and long life. It is the most promising high efficiency thin film solar cells to reduce the cost of photovoltaic power generation, and it can make full use of China’s rich indium resources, It is a kind of renewable energy technology which is really in line with the provisions of national laws and regulations and suitable for China’s national conditions, and has broad development prospects.
Picosecond laser cutting machine has very high peak power because of its short pulse width, only a few picoseconds. It is very suitable for etching and scribing solar thin film cell materials. When it interacts with the materials, the thermal effect of the etching part is very small, resulting in “cold” processing effect, avoiding unnecessary thermal effect, no heat affected zone, and smooth edge. Therefore, picosecond laser can be used for high-precision processing. The wavelength of picosecond laser ranges from infrared to ultraviolet. It can process a wide range of materials and is suitable for many applications.
From a global perspective, the combination of solar energy technology and various fields is vigorous. From high value-added fields such as buildings, automobiles, consumer electronics to satellites, thin-film solar energy has made mankind see the infinite possibility of future energy. Picosecond laser with its excellent processing ability will have a very high market prospect in the field of solar thin film cell processing.
Post time: Jul-06-2021