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Bismuth (Bi) Evaporation Material, Pellets, 99.999%, 1-3 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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Bismuth evaporation pellets require thermal resistance evaporation or low-power e-beam deposition using Mo, W, or Ta boats or graphite/alumina crucibles. The 1-3 mm pellet size is optimized for source loading compatibility with standard evaporation sources.
- Evaporation method preference: Thermal resistance evaporation is recommended, though low-power e-beam evaporation is permissible with appropriate source hardware.
- Crucible and boat material compatibility: Mo, W, or Ta boats or graphite or alumina crucibles are suitable for bismuth evaporation.
- Pellet size and loading: The 1-3 mm pellet size is specified for direct use in evaporation sources without additional sizing.
- Source geometry confirmation: Deposition source geometry must be confirmed prior to purchase to ensure compatibility with the pellet dimensions.
How does the 99.999% purity of Bismuth evaporation pellets affect thin-film quality and cost for research deposition?
The 99.999% purity ensures minimal metallic contamination, critical for high-quality electronic or optical thin films. The trade-off is higher material cost, as reflected in the indicative price tiers (e.g., 25g at USD 280, 1kg at USD 2300), allowing comparison between standard and high-purity grades.
Which boat or crucible materials are compatible with evaporating Bismuth pellets at 271°C?
The product is compatible with Mo/W/Ta boat or graphite/alumina crucible for thermal/resistive evaporation, with low-power e-beam as an optional method. The low melting point of 271°C allows these standard source materials to be used without excessive thermal stress.
What is the melting point of Bismuth and how does it influence the recommended evaporation method?
The melting point of Bismuth is 271°C, which is relatively low. This makes thermal/resistive evaporation the preferred method, with low-power e-beam as an optional alternative. The low melting point also enables the use of standard Mo/W/Ta boats or graphite/alumina crucibles without specialized high-temperature hardware.
Technical evaluation of Atomfair Bismuth (Bi) evaporation pellets (99.999% purity, 1-3 mm pellets) for vacuum thin-film deposition. The defined form and high purity support consistent evaporant loading and film quality, but the low melting point (271°C) and density (9.8 g/cm³) require careful source matching and thermal process control.
Positive
- High purity (99.999%): Minimizes contamination in deposited thin films, supporting research-grade film properties and reproducibility.
- Defined pellet form (1-3 mm): Consistent particle size simplifies source loading, improves evaporation rate stability, and reduces risk of clogging or uneven melt.
Trade-offs
- Source material compatibility critical: Requires Mo/W/Ta boat or graphite/alumina crucible; low melting point (271°C) may cause wetting or alloying with incompatible boat materials, limiting deposition hardware options.
- Low melting point demands thermal control: The 271°C melting point and high density (9.8 g/cm³) necessitate precise temperature regulation to avoid premature evaporation, splattering, or non-uniform deposition rates.
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).
