Iron telluride is a compound composed of tellurium and iron with the chemical formula FeTe. It is an important semiconductor material with high electrical and thermal conductivity, and has a wide range of applications in fields such as electronics, optoelectronics, and solar cells. 

The crystal structure of iron telluride is sphalerite structure, which has good crystallinity and stability. Its physical and chemical properties are relatively stable, and it is not easy to be oxidized and corroded.

Uses of Iron Telluride are shown as below:

1. Lubricants: Iron telluride can be used as a lubricant for the lubrication of mechanical equipment.

2. Catalyst: Iron telluride can be used as a catalyst for organic synthesis reactions.

3. Electronic materials: Iron telluride can be used as an electronic material to make semiconductor devices, solar cells, etc.

4. Magnetic materials: Iron telluride can be used as magnetic materials for the manufacture of magnetic recording materials, magnetic sensors, etc.

5. Optical materials: Iron telluride can be used as optical materials to make optical lenses, optical filters, etc.