TEC Microsystems - Miniature Thermoelectric Coolers and Sub-Assemblies

BiTe material is the key element of modern thermoelectric modules. Bismuth Telluride (BiTe) and its alloys are widely used as materials for thermoelectric coolers (TECs). They are also optimal for use in thermoelectric generators (TEGs) when the temperature of the heat source is moderate. Among different methods of BiTe material manufacturing hot extrusion process is the most modern technology. Hot-extruded BiTe material has the best balance of performance and mechanical properties, perfect for thermoelectric coolers and generators manufacturing. Despite various attempts to find alternatives, Bismuth Telluride is still the best-known commercially used thermoelectric material in the bulk form for cooling and power generation.


TEC Microsystems, being a developer and provider of miniature thermoelectric modules, based exactly on bulk BiTe material, works with the best specialists in the field of BiTe material manufacturing.

1MD02 Thermoelectric coolers - ultra-small high-peformance TECs for telecom industry

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◻ BiTe Thermoelectric Material Ingots

◻ Manufacturing process: Hot Extrusion

◻ N-Type composition: BiTeSeS

◻ P-Type composition: BiSbTe

◻ Ingot Diameter: 25mm (1inch)

◻ Ingot Lenght: 60mm


P-Type
Electrical Conductivity
P-Type
ThermoEMF
P-Type
Thermal Conductivity
P-Type
Figure-of-Merit

BiTe Material key Parameters


Material Properties

α

σ

α2σ

Zx1000

(@300K)

uV/K

1/Ohm x cm

uW/cm x K2

1/K

P- Type

≥195

950 – 1100

≥ 40

≥ 3.05

N- Type

≥195

950 – 1100

≥ 38

≥ 2.75


BiTe Material - P-type

Description

BiTe Material - N-type

N-Type
Electrical Conductivity
N-Type
ThermoEMF
N-Type
Thermal Conductivity
N-Type
Figure-of-Merit

BiTe Material - P-type Parameters

BiTe Material - N-type Parameters

◻ Parameters adjusment by request

◻ 100% Quality Control

◻ Direct Ingot Testing at QC

◻ Available Capacity: 150-200kg/month

◻ Projected Capacity: up to 500kg/month

UPDATE 2023


As of January 2023, we DO NOT sell Bi-Te material.  All produced volumes are used exclusively for internal needs due to volume growth and development of the company.