Description
Selenium Evaporation Materials, commonly known as Se Evaporation Materials, are specialized substances utilized in sealing selenium thin films. These materials are designed to evaporate at controlled rates, ensuring a uniform and high-quality coating when applied to substrates such as glass, plastics, or semiconductors.
The key properties of Selenium Evaporation Materials include their high purity, low vapor pressure, and excellent thermal stability. The high purity ensures that the deposited films are free from impurities, which can significantly impact their performance. The low vapor pressure allows for precise control over the evaporation rate, which is crucial for achieving thin and uniform coatings. Thermal stability ensures that the materials can withstand the high temperatures required for evaporation without decomposing or oxidizing.
Specification
Material
|
Selenium
|
Atomic Weight
|
78.96
|
Color/Appearance
|
Gray, Metallic Luster, Non-Metallic
|
Thermal Conductivity
|
0.52 W/m.K
|
Melting Point (°C)
|
217
|
Theoretical Density (g/cc)
|
4.81
|
Z Ratio
|
0.864
|
Temp. (°C) for Given Vap. Press. (Torr)
|
10^-8: 89 10^-6: 125 10^-4: 170
|
Applications
Selenium Evaporation Materials are widely used in producing solar cells, optical coatings, and thin-film transistors. In solar cells, selenium-based thin films are used as the active layer, converting sunlight into electricity. In optical coatings, selenium films can enhance the reflectivity or transmittance of optical components. In thin-film transistors, selenium films serve as the semiconducting layer, controlling the flow of electric current.
The evaporation process is typically carried out in a vacuum chamber, using a heated crucible or an electron beam source to vaporize the Selenium Evaporation Materials. The vapor then condenses on the substrate, forming a thin and uniform film.
Packaging:
Our evaporation materials are carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original condition.