Nanostructured Metal Tellurides and Their Heterostructures for Thermoelectric Applications-A Review.

Abstract

Telluride's and Selenides were assessed whether it is appropriate for thermoelectric effects. Previous researches showed that researchers strived to progress the performance of telluride based materials in creating structures where the entire dimensions are reduced, such as nanowires or thin films. Seebeck and Peltier coefficient was developed by means of Telluride thermoelectric devices. Epitaxial growth methods such as molecular beam epitaxy and metal organic chemical vapor deposition are some of the frequent methods of acquiring telluride thin films. Thermoelectric nano thin films and nanostructured materials should have the properties of insulation so that it can be used as energy storage devices and thermo electric generators. Conduction of electricity is usually convoyed by reversible and irreversible effects, such as electrical resistance and thermal conduction which is used to, Peltier refrigerators, generating electricity, renewable energies and its applications. Telluride films can be used in thermoelectric applications; these thermoelectric materials are mainly rare metals such as (Bi), (Te), (Pb) and (Sb). Thermal conductivity, figure of merit is advantageous factor of these energy storage devices. Thermoelectric cooler, thermoelectric generators are the powerful sources which can be eligible due to the use of telluride thin films. The thermal conductivity performance, figure of merit and Seebeck and Peltier coefficients of diverse materials were conferred.