Are monocrystalline silicon and polycrystalline silicon toxic?

At present, the fastest-growing solar cell, whose composition and production technology have been finalized, has been widely used in space and ground facilities. This kind of solar cell takes high-purity monocrystalline silicon rod as raw material, and the purity requirement is 99.999%. In order to reduce the production cost, all solar cells used on the ground now use solar-grade monocrystalline silicon rods, and the material performance index has been relaxed. ?

2. Polycrystalline silicon wafer

The production of monocrystalline silicon solar cells needs to consume a lot of high-purity silicon materials, but the manufacturing process of these materials is complicated and the power consumption is very high, which is more than half of that of polycrystalline silicon chips in solar cell production components. In addition, the drawn monocrystalline silicon rod is cylindrical, and the sliced solar cell is also a wafer, so the plane utilization rate of the solar cell module is low.

3. Is it poisonous?

For example, cleaning, corrosion, electroplating and other work, if the protective conditions are not good or you do not pay attention to protection, it is easy to be chronically poisoned;

If high-frequency heating equipment is commonly used and you don't know how to protect it, it is easy to be polluted by electromagnetic; If P, As diffusion or compound semiconductor process (especially grinding and polishing process of compound semiconductor wafer) is used, it is necessary to prevent poisoning.

But now the general units pay more attention to personal safety, as long as they pay attention to themselves, there will still be no problem. In addition, even in the circuit design work, environmental pollution (especially the X-ray radiation of CRT) is inevitable. In fact, indoor or outdoor environmental conditions are very noteworthy.