Tellurium dioxide is a chemical compound composed of the elements tellurium and oxygen, with the formula TeO2. It appears as a white or yellowish powder and is primarily used in the production of glass and ceramics. Its unique properties make it valuable in various applications, including electronics and optics. In addition to its industrial uses, tellurium dioxide is also studied for its potential in photovoltaic cells and other advanced materials. Its ability to form different crystal structures allows researchers to explore its behavior in various environments, contributing to advancements in material science and technology.