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VD0579A Silver(I) Selenide Pellet Evaporation Material (Ag2Se)

MSDS File
Material TypeSilver(I) Selenide
SymbolAg2Se
Color/Appearance
Melting Point (°C)896.85
Theoretical Density (g/cc)8.216
Z Ratio–
E-Beam–
Thermal Evaporation TechniquesBoat:  –
Crucible:  –
E-Beam Crucible Liner Material–
Temp. (°C) for Given Vap. Press. (Torr)–
Comments–

Silver I Selenide Pellet Evaporation Material

TFM offers high-quality Silver I Selenide Pellet Evaporation Material engineered for precise thin-film deposition in advanced semiconductor and optoelectronic applications. This material, composed of silver (Ag) and I Selenide, is prized for its unique electrical and optical properties, robust chemical stability, and excellent thermal performance. The carefully controlled evaporation process ensures the formation of uniform, defect-free films with precise thickness control and low impurity levels.

Silver I Selenide Pellet Evaporation Material is ideally suited for high-performance devices such as integrated circuits, photodetectors, solar cells, and infrared sensors. Its superior electrical conductivity and exceptional optical absorption characteristics make it an essential component in modern optoelectronic systems. Additionally, the material’s stable chemical composition and robust thermal endurance ensure reliable performance even under harsh processing conditions and demanding operational environments.

TFM’s advanced manufacturing techniques allow for precise control over the material’s composition, tailoring its properties to meet specific application requirements. This customization guarantees optimal film adhesion, uniform density, and enhanced deposition efficiency, which are critical for achieving breakthrough performance in next-generation semiconductor and optoelectronic devices.

By combining superior material quality with optimized evaporation parameters, TFM’s Silver I Selenide Pellet Evaporation Material delivers consistent, high-performance results, making it an indispensable resource for cutting-edge thin-film technologies.

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FAQ

  • They are high‐purity substances (e.g. metals, alloys, or compounds) used in thermal or electron‐beam evaporation processes to form thin films on substrates.

  • Typically, they’re processed into a form (often ingots, pellets, or wires) that can be efficiently vaporized. Preparation emphasizes high purity and controlled composition to ensure film quality.

  • Thermal evaporation and electron-beam (e-beam) evaporation are the two main techniques, where material is heated (or bombarded with electrons) until it vaporizes and then condenses on the substrate.

  • Thermal evaporation heats the material directly (often using a resistive heater), while e-beam evaporation uses a focused electron beam to locally heat and vaporize the source material—each method offering different control and energy efficiency.

  • Key parameters include source temperature, vacuum level, deposition rate, substrate temperature, and the distance between the source and the substrate. These factors influence film uniformity, adhesion, and microstructure.

  • Evaporation generally produces high-purity films with excellent control over thickness, and it is especially suitable for materials with relatively low melting points or high vapor pressures.

  • Challenges include issues with step coverage (due to line-of-sight deposition), shadowing effects on complex topographies, and possible re-evaporation of material from the substrate if temperature isn’t properly controlled.

  • Common evaporation materials include noble metals (e.g., gold, silver), semiconductors (e.g., silicon, germanium), metal oxides, and organic compounds—each chosen for its specific optical, electrical, or mechanical properties.

  • Selection depends on desired film properties (conductivity, optical transparency, adhesion), compatibility with the evaporation process, and the final device application (semiconductor, optical coating, etc.).

  • Optimizing substrate temperature, deposition rate, and chamber vacuum are critical for ensuring that the film adheres well and forms the intended microstructure without defects.

  • Troubleshooting may involve checking the source material’s purity, ensuring stable source temperature, verifying the vacuum level, adjusting the substrate’s position or temperature, and monitoring deposition rate fluctuations.

While evaporation tends to yield very high purity films with excellent thickness control, it is limited by its line-of-sight nature. In contrast, sputtering can deposit films more uniformly on complex surfaces and is more versatile for a broader range of materials.

 

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