Structure morphology and photoluminescence properties of rare earth doped V2O5 nanopowders and applications

Abstract

Growth and expansion of civilizations over the centuries is directly related to the newlinepeople skill set to yield and manipulate materials to accomplish day to day demands. newlineStatistics say, early civilizations have been designated by the level of their materials newlinedevelopment. Nanomaterials show significant change in physical as well as chemical newlineproperties from their atomic and molecular scale when compared to bulk counterpart. newlineThe individuality of the physical features, reaction, underlying forces and interaction newlineof nanomaterials is novel which organizes the experimental and hypothetical context newlinefor the vast research area of nanoscience. Advancement in nanotechnology was due to newlinevariation in particle size and morphological features which exhibits nanoparticles, newlinenanocrystals, nanowires, spheres, flowers, rods, tubes, cubes etc., newlineThe commercial nano-technologically engineered innovative products facilitate newlinehuman kind to produce, hold, and transfer, preserve energy. Currently, nanomaterials newlinesuch as metal oxides doped with rare-earth (RE3+) and transition metal ions (TM2+) newlinehave been used in panel display devices, energy converters, visual amplifiers, photodiodes, newlinephoto-detectors and color display devices. The luminescence property of the newlinematerial can be immensely enhanced by doping with minute quantity of rare-earth newline(RE3+ : Eu3+, Sm3+, Dy3+, Nd3+, Ce3+, Pr3+ etc.,) metal ions and transition metal ions newline(Tm2+: Mn2+, Ni2+ etc.,). The underlying themes in nanoscience and nano-technology newlineare dual in nature such as firstly, the bottom-up approach to cut down components in newlinebulk form to nano-form, then the top-down, where every single nanomaterial forms a newlinekind of nano-superstructures. newlineNano-powders of oxides, silicates, phosphates and sulphates are being synthesized newlineover decades and lot of techniques have been approached in producing nanoparticles, newlinethey are co-precipitation processing, hydrothermal, solution combustion technique, newlinespray pyrolysis, ultrasonic method, sol gel techniques etc., Among various oxides newlinenanostructured vanadiu