Bismuth Telluride is a compound made of the elements bismuth and tellurium. It is known for its unique properties, particularly its ability to conduct electricity while acting as an insulator for heat. This makes it valuable in thermoelectric applications, where it can convert temperature differences into electrical energy. In addition to its thermoelectric uses, Bismuth Telluride is often utilized in cooling devices, such as Peltier coolers. These coolers are used in various electronic applications, including refrigeration and temperature control in sensitive equipment. Its effectiveness in these roles has made it a popular material in modern technology.