High performance field emission of silicon carbide nanowires and their applications in flexible field emission displays

Synthesis and field emission properties of titanium carbide nanowires

Single crystalline TiC nanowires have been synthesized through a chloride-assisted carbothermal reduction process using active carbon, TiO2 and NaCl powders as precursors and carbon-coated cobalt or nickel nanoparticles as a catalyst. The products were characterized by x-ray diffraction, electron microscopy, energy-dispersive x-ray spectroscopy and x-ray photoelectron spectroscopy. The TiC nano...

Field Emission: High Performance Field Emitters (Adv. Sci. 5/2016)

Field Emission from Self-Catalyzed GaAs Nanowires

We report observations of field emission from self-catalyzed GaAs nanowires grown on Si (111). The measurements were taken inside a scanning electron microscope chamber with a nano-controlled tungsten tip functioning as anode. Experimental data were analyzed in the framework of the Fowler-Nordheim theory. We demonstrate stable current up to 10-7 A emitted from the tip of single nanowire, with a...

Electron field emission from transparent multiwalled carbon nanotube sheets for inverted field emission displays

Strong, conducting, transparent carbon nanotube sheets were prepared by solid-state draw from well-ordered, aligned multiwalled carbon nanotube (MWCNT) forests [Zhang et al., 2005] [1]. Study of electron field emission from such transparent MWCNT sheets shows threshold fields of less than 0.5 V/lm with current densities high enough for display applications. Step-like field emission current incr...

High-field hole transport in silicon nanowires

We report on ensemble Monte Carlo hole transport simulations for small diameter silicon nanowires. The basis for the simulations is provided by band structure calculations using sp3d5s tight-binding scheme. Principal scattering mechanisms considered are hole-bulk acoustic and optical phonon interactions. Both steady-state and transient hole transport characteristics are explored. For the silico...