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VD0841 Bismuth Selenide Evaporation Materials, Bi2Se3

Catalog No.VD0841
MaterialBismuth Selenide (Bi2Se3)
Purity99.9% ~ 99.999%
ShapePowder/ Granule/ Custom-made

TFM is a top provider and manufacturer of premium-grade bismuth selenide evaporation materials. Alongside this, we supply a broad selection of other evaporation materials tailored to meet various industry needs. Our products are available in both powder and granule forms, with additional customization options available to match specific requirements. Whether you need standard or specialized solutions, TFM delivers reliable, high-purity materials designed for precision applications.

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Overview of Bismuth Selenide Evaporation Materials

Bismuth selenide evaporation materials from TFM are high-purity selenide ceramic materials with the chemical formula Bi2Se3. These materials are essential for deposition processes, ensuring the creation of high-quality thin films. TFM specializes in producing evaporation materials with purities reaching up to 99.9995%, adhering to strict quality control standards for guaranteed performance and reliability.

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Specifications of Bismuth Selenide Evaporation Materials

SpecificationDetail
Material TypeBismuth selenide
Chemical FormulaBi2Se3
Appearance/ColorGray solid
Melting Point710 °C (1,310 °F; 983 K)
Density6.82 g/cm³
Purity Range99.9% to 99.999%
Available FormsPowder, Granules, Custom

Applications of Bismuth Selenide Evaporation Materials

Bismuth selenide evaporation materials are used in various deposition techniques such as semiconductor deposition, physical vapor deposition (PVD), and chemical vapor deposition (CVD). These materials are critical for applications involving optical coatings, wear protection layers, decorative coatings, and display technologies.

Packaging of Bismuth Selenide Evaporation Materials

TFM ensures that all bismuth selenide evaporation materials are securely packaged to prevent damage during transportation or storage. Each package is clearly labeled for easy identification and strict quality control.

Contact Us for Bismuth Selenide Evaporation Materials

As a trusted supplier, TFM offers a variety of high-purity bismuth selenide evaporation materials, including shapes such as tablets, granules, rods, and wires. Custom sizes and quantities are also available upon request. TFM also supplies a wide range of evaporation accessories, including sources, crucibles, filaments, heaters, and more. Please contact us for pricing information or for details about materials not listed.

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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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