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Platinum (Pt) Evaporation Material, Pellets, 99.95%, 3-6 mm
Product Type: Pure Metal Evaporation Material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material selection, deposition-source matching, pack-size confirmation or quotation support, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Platinum (Pt) pellets require thermal or e-beam evaporation at temperatures near 1,772 °C. The material must be used with compatible boat or hearth materials to avoid contamination and ensure uniform deposition.
- Evaporation Source Compatibility: Use only Mo, W, or Ta boats or water-cooled e-beam hearths lined with graphite or alumina to prevent reaction with molten platinum.
- Process Temperature Requirement: The melting point of 1,772 °C necessitates high-temperature evaporation equipment capable of sustained operation above 1,700 °C.
- Z-Ratio Calibration: Enter the Z-ratio of 0.245 into the quartz crystal monitor for accurate film thickness measurement during e-beam evaporation.
- Pellet Size Handling: Load the 3-6 mm pellets carefully to ensure uniform contact with the evaporation source and avoid spitting.
What is the recommended evaporation source material for platinum pellets to prevent contamination during thin-film deposition?
For platinum pellets with a melting point of 1,772 °C, the recommended evaporation source is a Mo/W/Ta boat for thermal/resistive evaporation or a water-cooled e-beam hearth with a graphite/alumina liner. These materials are selected to withstand the high temperature and minimize alloy formation or contamination during deposition.
What dimensional constraints should be considered when loading platinum pellets into a standard evaporation source?
The platinum pellets are supplied as 3–6 mm pieces, which are compatible with typical boat and hearth geometries. However, users must confirm that their source cavity dimensions accommodate this size range to ensure uniform heating and controlled evaporation rates.
How does the Z-ratio of 0.245 for platinum impact the accuracy of thin-film thickness monitoring using a quartz crystal microbalance?
The Z-ratio of 0.245 corrects for the acoustic impedance mismatch between quartz and platinum. This value must be programmed into the deposition controller to compensate for the material's density (21.45 g/cm³) and acoustic properties, ensuring accurate film thickness readings from the quartz crystal microbalance.
Platinum evaporation pellets (99.95%, 3-6 mm) offer high purity and defined pellet form for consistent thin-film deposition, but require careful source matching and QCM calibration due to high melting point (1772°C), density (21.45 g/cm³), and Z-ratio (0.245).
Positive
- High purity and defined pellet form: 99.95% purity and pellets 3-6 mm ensure consistent evaporation behavior and reliable source loading for vacuum thin-film deposition.
- Broad evaporation source compatibility: Supports both thermal/resistive and e-beam evaporation using Mo/W/Ta boat or water-cooled e-beam hearth with graphite/alumina liner, offering flexibility in deposition hardware selection.
Trade-offs
- High melting point and density: Melting point of 1772°C and density of 21.45 g/cm³ demand robust evaporation source hardware and careful thermal management to prevent material spitting or incomplete evaporation.
- Z-ratio requires QCM calibration: Z-ratio of 0.245 indicates significant thickness monitoring error if quartz crystal microbalance is not properly calibrated for platinum, necessitating accurate tooling factor adjustment for reliable film thickness control.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
