Evaporation materials are mainly used in the field of coatings, especially vacuum evaporating coating technology. Compared with the traditional coating technology, vacuum evaporation coating technology has the advantages of simple principle, easy equipment, less occupation of land, low cost and no pollution. In vacuum evaporation coating technology, the evaporation materials are heated in a vacuum environment. When it reaches a certain temperature, the evaporation materials will turn into a state of molecules or atoms. Because the environment is vacuum, the evaporation of materials (metal or non-metal) in this environment is much easier than normal pressure. In general, evaporation takes place rapidly in vacuum as long as the saturated vapor pressure is greater than 1.33 Pa by heating. Evaporation materials play important roles in vacuum evaporating coating technology, and it is necessary to fully understand their properties and select them appropriately.
Figure 1. A picture of vacuum evaporation coating technology device.
Figure 2. An example of evaporation materials used in solar cell.
According to the composition, evaporation materials can be divided into the following categories:
Micro-Nano Electric Materials
Organic and Printed Electronics
Photonic and Optical Materials