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Chromium Doped Silicon Monoxide Evaporation Materials

VD0726 Chromium Doped Silicon Monoxide Evaporation Materials, Cr-SiO

Catalog No.VD0726
MaterialChromium Doped Silicon Monoxide (Cr-SiO)
Purity99.9% ~ 99.99%
ShapePowder/ Granule/ Custom-made

TFM stands out as a top manufacturer and provider of high-purity chromium-doped silicon monoxide evaporation materials. Our extensive range includes both powder and granule forms of evaporation materials. For tailored solutions, we also offer custom forms to meet specific requirements.

MSDS File

Introduction

Chromium Doped Silicon Monoxide (Cr-SiO) evaporation materials are engineered for functional thin films where controlled optical absorption, improved film stability, and tunable electrical properties are required. By incorporating chromium into silicon monoxide, this material system enables precise adjustment of film characteristics, making it highly valuable in optical coatings, resistive layers, and advanced electronic applications.

Detailed Description

Cr-SiO evaporation materials consist of silicon monoxide (SiO) as the base matrix with a controlled amount of chromium dopant. SiO is widely used for optical coatings due to its good transparency and stable evaporation behavior, while chromium introduces enhanced absorption, conductivity, and structural stability.

The addition of chromium modifies the optical constants (refractive index and extinction coefficient), allowing engineers to design films with specific light absorption or attenuation characteristics. This is particularly useful in neutral density filters, optical interference coatings, and sensor applications.

These materials are typically supplied as granules, pellets, or custom shapes optimized for thermal evaporation or electron beam evaporation. Controlled particle size and density ensure smooth evaporation, reduced spitting, and consistent deposition rates under high vacuum conditions.

Key features include:

  • Tunable optical and electrical properties through chromium doping

  • Stable evaporation behavior with reduced film defects

  • Improved adhesion and film density compared to pure SiO

  • Suitable for precise optical coating design

  • Customizable chromium concentration based on application needs

Applications

Cr-SiO evaporation materials are widely applied in:

  • Optical coatings (neutral density filters, interference coatings)

  • Thin film resistors and functional electronic layers

  • Infrared and visible light absorption coatings

  • Sensor devices and optoelectronic components

  • Decorative coatings with controlled optical appearance

  • Research and development in thin film materials engineering

Technical Parameters

ParameterTypical Value / RangeImportance
CompositionSiO + Cr (doped, customizable)Controls optical & electrical behavior
Purity99.9% – 99.99%Reduces contamination in films
FormGranules / Pellets / PiecesEnsures stable evaporation
Particle Size1 – 6 mm (customizable)Affects evaporation uniformity
Evaporation MethodThermal / E-beam evaporationProcess compatibility
DensityOptimized for evaporationImproves deposition stability

Comparison with Related Materials

MaterialKey AdvantageTypical Application
Cr-SiOTunable optical absorption & conductivityOptical filters, sensors
Silicon Monoxide (SiO)High transparency, stable evaporationOptical coatings
Chromium (Cr)Strong absorption, conductivityAdhesion & functional layers
Silicon Dioxide (SiO₂)High transparency, insulationOptical & dielectric films

FAQ

QuestionAnswer
Can the chromium content be customized?Yes, doping levels can be adjusted to achieve specific optical or electrical properties.
What evaporation methods are suitable?Commonly used in thermal and electron beam evaporation systems.
How does chromium affect the film?It increases absorption, modifies refractive index, and can improve conductivity.
Is this material suitable for optical coatings?Yes, it is widely used for filters and interference coatings.
How should it be stored?In vacuum-sealed or moisture-controlled packaging to prevent oxidation.

Packaging

Our Chromium Doped Silicon Monoxide Evaporation Materials are meticulously tagged and labeled externally to ensure efficient identification and maintain high standards of quality control. We take great care to prevent any potential damage during storage and transportation, ensuring the materials arrive in perfect condition.

Conclusion

Chromium Doped Silicon Monoxide evaporation materials provide a versatile solution for advanced thin film applications requiring tunable optical and electrical properties. With customizable compositions and reliable evaporation performance, they are ideal for optical coatings, electronic devices, and research applications.

For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.

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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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