Zinc Oxide Nanostructures; Synthesis, Characterizations and Device Applications

摘要

Recently, scientific and research community have shown their great interest on zinc oxide nanostructures and its applications due to its easier, safer, environmental friendly, with cheaper synthesis procedure and technological applications in the fabrication of devices for energy harvesting and storage, photonics, sensors as well as medical and biological applications. It can be fabricated in various morphologies such as nanoparticles, cubes, cuboids, circular and hexagonal discs, nanorods, nanowires, tapes, belts, tetra pods, and flowers using various cheap physical and chemical routes in powder, colloid as well as nanostructures films phase. ZnO can be grown on any substrates such as metals, semiconductors, crystalline as well as amorphous, polymers, and flexible plastics unlike other III-V semiconductor and silicon, which requires specific and costly substrates. Now days, zinc oxide nanostructures are widely used in the fabrication of cheap and efficient solar cells, light detectors, nano-lasers, nano-generators, sensors and electronic devices such as transistors and FETs. Zinc oxide nanostructures have not only great potential as nano-lasers, nano-generators to convert mechanical energy into electrical and LEDs but also have charming capacity in the fabrication of efficient solar cells, optoelectronic, bio-medical devices. This review chapter is devoted to the various physical and chemical routes of the fabrication of zinc oxide nanostructures and its applications.