Showing papers by "Bhaskar R. Sathe published in 2010"
TL;DR: Selective decoration of Rh nanospheres on acid functionalized carbon nanotubes has been demonstrated using Al as a sacrificial substrate, demonstrating remarkable field emission for this heterostructure.
14 citations
TL;DR: In this paper, the field emission of In-doped SnO2 wire array has been performed in parallel plate diode configuration and a maximum current density of 60'µA/cm2 is drawn from the emitter at an applied field of 4'V/µm.
Abstract: The field emission of In-doped SnO2 wire array has been performed in parallel plate diode configuration. A maximum current density of 60 µA/cm2 is drawn from the emitter at an applied field of 4 V/µm. The nonlinearity in the Fowler–Nordheim plot, characteristics of semiconductor emitter has been observed and explained on the basis of electron emission from both the conduction and the valence bands. The current stability recorded at a preset value of 1 µA is observed to be good. The high emission current density, good current stability and mechanically robust nature of the wires offer unprecedented advantages as promising cold cathodes for many potential applications based on field emission.
13 citations
TL;DR: In this article, a simple modified thermal evaporation technique is employed for the synthesis of microstructured Fe:SnO 2 system and their plausible growth mechanism has been proposed based on the results from various characterization techniques.
8 citations
TL;DR: In this article, the emergence of surface plasmon peaks at 375 nm and 474 nm, respectively, is attributed to truncated and smooth surface of nanospheres in contrast to the absence of surface Plasmon for bulk Rh(0) in the visible range.
Abstract: Manipulating the surface to tune plasmonic emission is an exciting fundamental challenge and here we report on the development of unique morphology-dependant optical features of Rh nanostructures prepared by an equilibrium procedure. The emergence of surface plasmon peaks at 375 nm and 474 nm, respectively, is ascribed to truncated and smooth surface of nanospheres in contrast to the absence of surface plasmon for bulk Rh(0) in the visible range. Smaller sized, high surface area domains with well developed, faceted organization are responsible for the promising characteristics of these Rh nanospheres which might be especially useful for potential catalytic, field emission and magnetic applications.
5 citations