Bismuth Telluride

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. Tellurium powder and bismuth powder are the raw material.

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

Applications

Bi₂Te₃ rod is beneficial 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.