Bismuth telluride can be black powder or gray rod, which is a kind of semiconductor material. The another name is bismuth(III) telluride. It owns good electrical conductivity, however thermal conductivity is bad, which is perfect thermoelectric materials. Thermoelectric material is function material that realize direct interconversion between thermal energy and electric energy. Usual production methods are hot-press, zone-melting, HPVB and Czochralski. It can process into films too.
Bi2Te3 is a leading thermoelectric material widely recognized for its efficiency in converting heat to electricity and vice versa. With its exceptional thermoelectric properties, Bi2Te3 has become a cornerstone material in applications that demand efficient temperature control, waste heat recovery, and portable power generation. As industries push toward more energy-efficient technologies, Bi2Te3’s unique ability to maintain performance in both heating and cooling systems makes it invaluable in sectors ranging from electronics to automotive and aerospace.
Bismuth Telluride
Type: P type, N type
| CAS No.:1304-82-1 | EINECS No.:215-135-2 | Molecular Formula:Bi2Te3 | Molecular Weight:800.76 |
| Melting Point:585℃ | Density:7.642 | UN 3284 6.1/PG 3 | Purity:99.999% |
Applications
Bi2Te3 rod use for semiconductor, electronic refrigeration and electricity generation. Bi2Te3 is evaporation coating material too, which can process into sputtering targets.
In thermoelectric cooling, bismuth telluride is the material of choice for Peltier devices-solid-state components that provide compact, reliable cooling for sensitive electronics and small-scale applications. Bi2Te3 thermoelectric coolers are essential in devices like laser diodes, medical equipment, and telecom components, where precise temperature regulation is crucial. These coolers offer silent, vibration-free operation and can be used in miniature form, making them ideal for compact devices and applications where traditional refrigeration methods are impractical.
Bismuth telluride also plays a significant role in waste heat recovery systems. By harnessing the Seebeck effect, Bi2Te3 can convert waste heat from industrial processes, automotive exhaust, and even geothermal sources into usable electricity. This capability enables industries to improve energy efficiency and reduce overall power consumption. The automotive and aerospace sectors benefit from Bi2Te3 thermoelectrics to capture and repurpose heat, contributing to greener, more sustainable energy solutions.
Additionally, Bi2Te3 has emerging applications in portable power generation. Wearable devices and small electronics can incorporate Bi2Te3 to generate power from body heat or environmental heat sources, supporting energy-harvesting technologies that reduce reliance on batteries.