Bi2Te3 (Bismuth Telluride)

Bismuth telluride (Bi₂Te₃) is a semiconductor material commonly used in cooling devices and thermoelectric applications. It can convert temperature differences directly into electrical voltage and vice versa, making it useful for precise temperature control and energy harvesting. Bi₂Te₃ has a layered crystal structure that enables efficient charge carrier movement, which is key for its thermoelectric performance. Its ability to generate electricity from waste heat or create cooling effects without moving parts makes it valuable in refrigerators, wearable coolers, and power generation systems, especially at room temperatures.