Atomfair Lead Telluride (PbTe) Powder, 99.999% Purity, Approx. 60 mesh
Product Description
Atomfair Lead Telluride (PbTe) Powder is supplied as a powder with 99.999% purity and Approx. 60 mesh. It is intended for thermoelectric-material and infrared-detector research.
Technical Specifications |
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Customization & Ordering
Package availability, minimum order quantity, pricing, and lead time are confirmed during quotation.
Key Features and Advantages
- Narrow-bandgap semiconductor with a room-temperature band gap of 0.32 eV.
- Rock-salt cubic cF8 crystal structure with a density of 8.164 g/cm³.
- PbTe is a thermoelectric and infrared-detector material system.
APPLICATION SCOPE: thermoelectric-material and infrared-detector research
DOCUMENTATION: COA and SDS can be provided upon request for batch-specific confirmation.
LABORATORY PROCUREMENT SUPPORT
For grade selection, particle-size confirmation, documentation support or custom specification review, contact our technical sales team.
How does the band gap of PbTe powder change with temperature, and what implications does this have for thermoelectric device performance?
The band gap of PbTe is 0.25 eV at 0 K and 0.32 eV at 300 K, as specified in the technical data. This narrow, temperature-dependent band gap makes it suitable for thermoelectric applications at moderate temperatures, directly influencing the Seebeck coefficient and electrical conductivity in device design.
What is the crystal structure of this PbTe powder, and how does it contribute to its thermoelectric properties?
PbTe has a rock-salt cubic (cF8) crystal structure with a density of 8.164 g/cm³. This structure is known to promote low thermal conductivity via phonon scattering, which is advantageous for achieving a high thermoelectric figure of merit in material systems.
What is the melting point of PbTe powder, and how does it affect thermal processing for thermoelectric element fabrication?
The melting point is 924 °C as listed. This high melting point allows sintering or hot pressing at elevated temperatures without decomposition, enabling the fabrication of dense bulk thermoelectric elements from the powder.
Atomfair Lead Telluride (PbTe) Powder with 99.999% purity and approx. 60 mesh particle size is a narrow-bandgap semiconductor optimized for thermoelectric and infrared detector research, though the coarse particle size may require additional milling for fine-powder applications, and batch-specific documentation must be requested separately.
Positive
- Ultra-high purity 99.999%: Minimizes impurity-induced carrier scattering and degradation, critical for thermoelectric and infrared detector device performance.
- Narrow-bandgap semiconductor: Room-temperature band gap of 0.32 eV makes this material suitable for mid-infrared detection and thermoelectric energy conversion near room temperature.
Trade-offs
- Approximate 60 mesh particle size: The specified particle size is approximate and relatively coarse, potentially requiring additional milling or sieving for applications demanding fine or uniform particle distribution.
- Documentation available upon request: Certificates of analysis and safety data sheets are not included by default; batch-specific documentation must be requested separately, which may delay procurement and validation.
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).
