Thin Film Materials Logo
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Aluminium Antimony Pellet Evaporation Material (AlSb)

Material: Aluminium Antimony
Chemical Formula: AlSb
Catalog No.: TFM-EVM-0003
Shape: Pellet / custom dimensions

Aluminium Antimony evaporation material is supplied by Thin Film Materials (TFM) for vacuum evaporation and thin-film deposition. Available form, size, and packaging can be customized according to project requirements.

MSDS File

Product Overview

Aluminium Antimony Pellet Evaporation Material (AlSb) (AlSb) is supplied in pellet form to provide a compact, controlled charge for evaporation research involving complex or multicomponent materials. Pellet geometry can improve loading and handling, but it does not guarantee congruent evaporation. For multicomponent semiconductors and chalcogenides, the relative vapor pressures of the constituents, heating method, and deposition rate can influence film composition.

Evaporation Behavior and Process Considerations

Pellets should be loaded so that the charge is mechanically stable and heats uniformly. For complex materials, a slow preconditioning step can reduce trapped gas release and thermal shock. Because multicomponent pellets may not evaporate congruently, quartz-crystal rate monitoring alone should not be treated as proof of final film stoichiometry.

Technical Data

ParameterTypical Value / RangeImportance
Chemical CompositionAlSb (stoichiometric)Ensures stable electrical and optical properties
Purity99.9% – 99.99%Reduces defects and contamination in thin films
Pellet Size1 – 6 mm (customizable)Matches evaporation sources and crucibles
FormSolid pelletsEnables controlled evaporation and easy handling
Evaporation MethodThermal / E-beamCompatible with common PVD systems
MaterialKey AdvantageTypical Application
Aluminium Antimony (AlSb)Narrow bandgap, good lattice matchingInfrared detectors, III–V research
Gallium Antimonide (GaSb)Higher hole mobilityHigh-performance IR devices
Indium Antimonide (InSb)Extremely narrow bandgapLong-wavelength IR sensing
QuestionAnswer
Can AlSb pellets be customized in size?Yes, pellet diameter and weight can be tailored to specific evaporation sources.
Which evaporation methods are suitable?AlSb pellets are compatible with both thermal and electron-beam evaporation.
How is compositional uniformity ensured?Controlled synthesis and strict quality inspection ensure consistent stoichiometry.
Is the material suitable for R&D use?Yes, it is widely used in laboratory research and pilot-scale production.

Typical Thin-Film Applications

  • Thin-film R&D requiring a composition-specific evaporation source
  • Optical, semiconductor, electronic, energy, and advanced-material coating studies depending on the compound
  • Custom PVD research using pellets, pieces, granules, or other source forms

Source Form and Ordering Considerations

For quotation, provide the material or formula, purity, desired source form and size, quantity, evaporation method if known, and any crucible, boat, or e-beam hearth constraints. For compound materials, include the target film composition or application when possible so that source form and process risk can be reviewed together. TFM can supply pellets, pieces, granules, tablets, or other custom forms subject to material manufacturability.

Frequently Asked Questions

Why is Aluminium Antimony Pellet (AlSb) supplied as an evaporation pellet?

Pelletizing provides a compact charge that is easier to load, handle, and heat than loose powder. It also helps reduce dust and movement inside the source holder.

Does a Aluminium Antimony Pellet (AlSb) pellet evaporate congruently?

Not necessarily. In multicomponent materials, individual elements can have different vapor pressures, so the film can drift from the nominal pellet composition during deposition.

Should complex evaporation pellets be preconditioned?

Yes. A slow preheating step can reduce trapped gas release, thermal shock, and sudden spitting before the substrate shutter is opened.

Is e-beam evaporation suitable for Aluminium Antimony Pellet (AlSb) pellets?

It can be, especially when localized heating is needed, but suitability depends on decomposition behavior, electrical/thermal properties, and the desired film composition.

How should the final film composition be controlled?

Use deposition-rate control together with post-deposition composition analysis. For strict composition tolerances, co-evaporation from separately controlled sources may be considered.

What dimensions can be customized for Aluminium Antimony Pellet (AlSb) pellets?

Pellet diameter, thickness, charge mass, and quantity can be reviewed according to the source pocket or crucible dimensions and material manufacturability.

Reviews

There are no reviews yet.

Be the first to review “Aluminium Antimony Pellet Evaporation Material (AlSb)”

Your email address will not be published. Required fields are marked *

Related Products

Related products

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.

 

Shopping Cart
Scroll to Top