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Silver (Ag) nanocubes with average size of 69 nm were decorated on TiO2 nanotubes by using UV switchable reducing agent. The field emission current density versus applied field (J-E) and emission current versus time (I-t) characteristics were measured in a planer diode configuration at the base pressure of 1 x 10-8 mbar. Turn-on field defined for the emission current density of 10 μA/cm² has been found to be 4.1 V/μm and upon the application of high applied electric field of 7.4 V/μm, maximum current density of 1.1 mA/cm² has been achieved. I-t measurement has been studied at the preset of 1 μA emission current for the duration of 3 hr. Overall nature of emission current has been seen to be stable for duration of measurement. Superior field emission behavior in terms of maximum current density and emission stability makes the present emitter more suitable for micro/nano-electronics device applications. [ABSTRACT FROM AUTHOR]

The Cd(OH)2 nanowires were grown on Silicon(Si) substrate by simple chemical bath deposition technique and gold(Au) nanoparticles were decorated on surface of the Cd(OH)2 nanowiresby sputtering method. Detail characterization such as morphological and structural analysis of Au/Cd(OH)2 nanowires has been carried out using Field Emission Scanning Electron Microscope and X-ray Diffraction. Low turn-on field of 0.75 V/μm was found forthe emission current density of 10 µA/cm2 and high currentdensity of 1.478mA/cm2 was drawn at an applied field of 1.6 V/μm from Au/Cd(OH)2 nanowires, observed low turn-on field was found superior to other metal nanoparticles decorated semiconducting nanostructures reported in the literature. Also the field emission current stability for the preset value of 10 µA over the period of 3 hr is found to be good. To the best of our knowledge, this is the first report on the synthesis and field emission studies Au/Cd(OH)2 nanowires. [ABSTRACT FROM AUTHOR]