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Germanium Arsenide Selenide Sputtering Target

ST0984 Germanium Arsenide Selenide Sputtering Target, Ge-As-Se

Chemical FormulaGe-As-Se
Catalog No.ST0984
CAS Number57673-50-4
Purity99.9%, 99.95%, 99.99%, 99.995%, 99.999%
ShapeDiscs, Plates, Column Targets, Step Targets, Custom-made

With a strong emphasis on high quality and affordability, TFM specializes in Germanium Arsenide Selenide Sputtering Targets. Our commitment to excellence ensures that clients receive exceptional products at competitive prices, making our sputtering targets a preferred choice in the industry.

Introduction

Germanium Arsenide Selenide Sputtering Targets belong to the family of chalcogenide glass and compound materials widely used in infrared optics, photonics, and advanced semiconductor research. By combining germanium, arsenic, and selenium, these materials exhibit excellent infrared transparency, tunable optical band gaps, and high refractive indices. As sputtering targets, Ge–As–Se compositions enable precise deposition of functional chalcogenide thin films for next-generation optical and electronic devices.

Detailed Description

Our Germanium Arsenide Selenide Sputtering Targets are fabricated using carefully controlled synthesis and densification processes to ensure compositional uniformity and phase stability. Precise control of the Ge–As–Se ratio is critical, as small deviations can significantly affect optical transmission, refractive index, and glass network structure in the deposited films.

High-purity elemental raw materials are used to minimize oxygen and metallic impurities that may degrade infrared performance. The targets are typically produced as dense, homogeneous discs suitable for RF sputtering. Their refined microstructure reduces particle generation and improves plasma stability during deposition, resulting in smooth, uniform thin films with reproducible optical properties. Custom compositions, dimensions, and bonding options can be provided to match specific sputtering systems and research requirements.

Applications

Germanium Arsenide Selenide Sputtering Targets are primarily used in advanced optical and electronic thin film applications, including:

  • Infrared optical coatings and waveguides

  • Chalcogenide glass thin films for IR sensors and detectors

  • Integrated photonics and nonlinear optical devices

  • Phase-change and memory-related research

  • Optical data storage and mid-infrared imaging systems

  • Academic and industrial R&D on chalcogenide materials

Technical Parameters

ParameterTypical Value / RangeImportance
Chemical CompositionGe–As–Se (custom ratios)Determines optical band gap and IR transparency
Purity99.9% – 99.99%Reduces optical absorption losses
Diameter25 – 200 mm (custom available)Fits standard sputtering cathodes
Thickness3 – 6 mmInfluences sputtering lifetime
Density≥ 95% theoreticalImproves plasma stability and film uniformity
Sputtering ModeRF sputteringRequired for semiconducting compounds
BondingUnbonded / bonded on requestEnhances thermal and mechanical stability

Comparison with Related Materials

MaterialKey AdvantageTypical Application
Germanium Arsenide SelenideBroad IR transparency, tunable compositionIR optics & photonics
Germanium Selenide (GeSe)Simpler stoichiometryIR and semiconductor films
Arsenic Selenide (As₂Se₃)High refractive indexIR waveguides
Germanium Sulfide (GeS)Wider band gapOptical coatings

FAQ

QuestionAnswer
Can the Ge–As–Se composition be customized?Yes, elemental ratios can be tailored to meet specific optical or electrical requirements.
Is RF sputtering required?Yes, Ge–As–Se targets are typically used with RF sputtering systems.
How are the targets packaged?Vacuum-sealed with protective cushioning and export-grade cartons or crates.
Are these targets suitable for infrared applications?Yes, they are specifically designed for high-performance IR thin films.

Packaging

Our Germanium Arsenide Selenide Sputtering Targets are meticulously labeled and vacuum-sealed to ensure traceability and protection from moisture or contamination. Robust packaging minimizes the risk of damage during storage and international transportation.

Conclusion

Germanium Arsenide Selenide Sputtering Targets provide a reliable and flexible solution for depositing high-quality chalcogenide thin films with excellent infrared and optical performance. With precise composition control, high purity, and customizable formats, they are well suited for advanced photonics research and specialized industrial applications.
For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.

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FAQ

It’s the source material (in solid form) used in sputter deposition to eject atoms or molecules that then form a thin film on a substrate.

Targets can be pure metals (e.g., gold, copper, aluminum), ceramics (e.g., Al₂O₃, SiO₂, TiO₂), alloys, or composites—chosen based on the film’s desired properties.

 

They are produced by processes such as melting/casting for metals or sintering (often with hot isostatic pressing) for ceramics and composite targets to ensure high density and purity.

 

In a vacuum chamber, a plasma (typically argon) bombards the target, ejecting atoms that travel and condense on a substrate, forming a thin film.

 

Key factors include the target’s purity, density, grain structure, and the sputtering yield (i.e. how many atoms are ejected per incident ion), as well as operating conditions like power density and gas pressure.

 

Operators monitor target erosion (often by measuring the depth of the eroded “race track”) or track total energy delivered (kilowatt-hours) until it reaches a threshold that can compromise film quality.

 

Fragile materials (such as many ceramics or certain oxides) and precious metals often require a backing plate to improve cooling, mechanical stability, and to allow thinner targets that reduce material costs.

 

DC sputtering is used for conductive targets, while RF sputtering is necessary for insulating targets (like many oxides) because it prevents charge buildup on the target’s surface.

 

In reactive sputtering, a reactive gas (e.g., oxygen or nitrogen) is introduced to form compound films on the substrate, but it may also “poison” the target surface if not carefully controlled.

 

Many manufacturers prefer to control raw material quality by sourcing their own powders; using external powders can risk impurities and inconsistent target properties.

 

Targets should be stored in clean, dry conditions (often in original packaging or re-wrapped in protective materials) and handled with gloves to avoid contamination, ensuring optimal performance during deposition.

Deposition rate depends on factors such as target material and composition, power density, working gas pressure, substrate distance, and the configuration of the sputtering system (e.g., magnetron design).

 
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