Synthesis of crystalline Tellurium nanowires by thin film fabrication via thermal evaporation method
Tellurium nanostructures have attracted much interest due to their interestingproperties such as gas sensing, photoconductivity, nonlinear optical response, andhigh thermoelectric or piezoelectric responses. Crystalline Tellurium nanowires weresuccessfully synthesized at 10-1 mbar, 10-2 mbar, and 10-3 mbar pressures by thin filmfabrication via evaporation of Tellurium powder and its condensation on glasssubstrates at different temperatures in a tube furnace. The morphology and size of theproducts were studied using field emission scanning electron microscopy (FESEM).The synthesized nanowires have diameters between 46 and 100 nm and lengths up toseveral micrometers. X-Ray diffractometry (XRD) was carried out to characterizecrystal structure of the products. The peaks of the diffractogram were successfullyindexed assuming the hexagonal crystal structure of Tellurium.
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