Bismuth Telluride Evaporation Pieces 99.999% ATOMFAIR®

This evaporation material requires precise matching of deposition source hardware and process parameters to prevent degradation and ensure film quality. The material's melting point, density, and Z-ratio are critical parameters that must be incorporated into the evaporation process design.

• Crucible and Boat Compatibility: The material must be evaporated from quartz, alumina, or graphite crucibles, or tantalum or tungsten boats, depending on the thermal evaporation or e-beam method.
• Process Parameter Requirements: The melting point of 572°C, density of 7.7 g/cm³, and Z-ratio of 1.00 must be used to set deposition rate and thickness monitoring parameters.
• Form and Loading Constraints: The pieces form (1–3 mm) must be suitable for the source loading mechanism to ensure uniform heating and evaporation.
• Purity and Film Quality: The 99.999% purity specification must be verified against the target film impurity requirements to avoid contamination.

This 99.999% pure Bi2Te3 evaporation material in 1-3 mm pieces is evaluated for thermal and low-power e-beam deposition. The controlled particle size and high purity support consistent film stoichiometry, but the 572°C melting point and required source compatibility pre-validation impose operational constraints.

Positive

• High purity (99.999%): 5N purity minimizes contamination in deposited thin films, critical for thermoelectric and electronic device performance.
• Controlled particle size 1-3 mm: Uniform piece size ensures consistent source loading and stable evaporation rates in thermal and e-beam systems.

Trade-offs

• Melting point sensitivity: At 572°C, careful temperature ramping is required to avoid thermal decomposition or stoichiometric drift during evaporation.
• Source compatibility pre-validation: Deposition hardware (crucible, boat, Knudsen cell) must be confirmed via RFQ, adding procurement lead time and risk of mismatch.

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).