The application of UV curing technology in the process of photovoltaic silicon wafer production

Photovoltaic silicon wafers are the core material of solar cells, and their production process requires the use of various chemicals and adhesives. The traditional curing method requires the use of ultraviolet lamps, which not only have a large volume but also consume high energy. In recent years, with the development of UVLED technology, more and more photovoltaic silicon wafer production enterprises have begun to adopt UVLED curing technology, which has the advantages of low energy consumption, high efficiency, safety and environmental protection.

The basic principle of UVLED curing technology

UVLED curing is a technology that uses the ultraviolet radiation emitted by UVLED to cure adhesives. When ultraviolet light shines on the surface of the adhesive, the monomers and low molecular weight substances in the adhesive undergo cross-linking reactions, forming high molecular weight polymers, making the adhesive strong and durable. UVLED curing technology has the following characteristics:

01 High efficiency: UVLED has a high light efficiency and can complete the photo curing process in a short time, improving production efficiency.

02 Low energy consumption: UVLED light sources can efficiently convert electrical energy into light energy, resulting in lower energy consumption compared to traditional UV lamps.

03 Safety and Environmental Protection: UVLED light sources are free from UV radiation and mercury pollution, and are harmless to the environment and operators.

Application of UVLED photocuring in photovoltaic silicon wafer production

01 Backboard curing

The back panel is an important component of photovoltaic cells, and its main function is to protect the battery components and provide support. In the production process, it is necessary to bond the back panel to the battery cells and make them tightly bonded through curing. The traditional curing method requires the use of lamps, while UVLED curing technology can achieve efficient, safe, and stable curing effects.

02 Silicon wafer bonding

In the production process of photovoltaic silicon wafers, it is necessary to bond multiple silicon wafers together to improve the output power of battery modules. UVLED curing technology can achieve more uniform and efficient curing effects, thereby improving the quality and efficiency of battery components.

03 Transfer Film

In the manufacturing process of photovoltaic silicon wafers, transfer film is also needed to make battery chips. The traditional curing method requires the use of ultraviolet lamps, and UVLED curing technology can achieve more efficient and safe curing effects, thereby improving the manufacturing efficiency and quality of battery modules.

The advantages of UVLED curing technology

1. Energy conservation and emission reduction

The energy consumption of UVLED light sources is more than 50% lower than that of traditional ultraviolet lamps, and UVLED light sources do not contain harmful substances such as mercury, which can greatly reduce environmental pollution and harm.

2. Improve production efficiency

UVLED curing technology has efficient, fast, and uniform curing effects, which can improve production efficiency and quality.

3. Reduce production costs

UVLED light sources have advantages such as long lifespan and low maintenance costs, which can reduce production costs.

The emergence of UVLED curing technology has greatly promoted the progress of photovoltaic silicon wafer production technology, improved production efficiency and product quality, while also meeting environmental requirements. In the future, with the continuous development of UVLED technology, its application in the production of photovoltaic silicon wafers will be more extensive.