“…Their tunable optical and electronic properties make them suitable for many applications including photovoltaic cells, light-emitting diodes, sensor, solar energy convertor, etc. One key to successful application of such semiconductor nanomaterials is their flexibility in morphology, composition and structure, as well as controllable size and surface functionality [5]. Among all the nanomaterials, tellurium, a p-type semiconductor with extremely narrow band gap (0.35 eV), has increasingly wider applications due to its good photoconductivity, thermoelectricity, photoconduction, catalysis, nonlinear optical properties and high piezoelectricity [6][7][8].…”