Potassium telluride (K₂Te) is an inorganic compound composed of potassium and tellurium. It is a white solid with the properties of alkali metal telluride. The crystal structure of potassium telluride is similar to that of other telluride with an antifluorite structure. A major application of this substance is in space as an ultraviolet detector, similar to rubidium telluride and cesium telluride.

Uses of Potassium telluride are shown as below:

1. Semiconductor materials: Potassium telluride can be used to produce semiconductor materials such as bismuth telluride, which have important applications in the field of thermoelectric power generation and refrigeration, and are used in thermocouples and thermoelectric generators because of their excellent thermoelectric properties.

2. Electronics industry: Potassium telluride can be used as a source of tellurium for the manufacture of specific electronic components in the electronics industry, such as diodes, transistors, etc.

3. Metallurgical industry: In the metallurgical industry, potassium telluride can be used as an additive to improve the processing and physical properties of certain metals.

4. Catalyst: Potassium telluride can also be used as a catalyst or component of a catalyst for specific reactions in chemical synthesis processes.

5. Scientific research: In scientific research, potassium telluride can be used to synthesize and characterize new compounds to explore their potential applications in materials science, chemical synthesis, and more.