Tellurium nanoparticles  (Te) was a rare element. Te belongs to the same chalcogen family. Te and its compounds exhibit excellent antioxidant activity. Tellurium is known to be one of the most interesting semiconductors. It manifests a unique combination of useful and interesting properties for instance photoconductivity, catalytic activity towards hydration and oxidation reactions, high piezoelectric, thermoelectric, and non-linear optical responses.

Because of these properties of tellurium assists the element to find distinct applications for instance as in thermoelectronics, photoconductors and highly resistive and piezoelectronic devises. The availability of tellurium nanostructures with low dimensionalities would no doubt bring new types of applications or enhance the performance of currently existing devices.

Tellurium nanoparticles exhibit excellent carrier-mobility. Properties make tellurium a promising candidate as the material of choice for next-generation optoelectronic and photonic devices. Tellurium is utilized as a secondary vulcanizing agent for rubber, in alloying agents for copper and stainless steel to make them easier to machine and mill and in color glass and ceramics.

Te slab or thin films can achieve large surface reflectance, making it promising for application as an efficient broadband back reflector (mirror) or the back surface of a solar cell. Tunable tellurium nanoparticles (TeNPs) and nanotubes have been used to produce for solar energy cells. The citric-TeNPs as a novel solution for anticancer activity with low associated cytotoxicity towards healthy cells.