Abstract
We developed and successfully fabricated a plannar light
source device using a phosphor screen with single-walled carbon nanotubes
(SWCNTs) as field emitters in a simple diode structure composed of the cathode
containing the highly purified and crystalline SWCNTs dispersed into an organic
In2O3–SnO2 precursor solution and a non-ionic surfactant. The cathode was
activated by scratching process with sandpaper to obtain a large field emission
current with low power consumption. The nicks by scratching were treated with
Fourier analysis to determine the periodicity of the surface morphology and
designed with controlling the count number of sandpapers. The anode, on the
other hand, was made with phosphor deliberately optimized by coverage of ITO
nanoparticles and assembled together with the cathode by the new stable
assembling process resulting to stand-alone flat plane-emission panel.