Title :
Enhanced Carbon Nanotube Field Emitter With Adsorbed Au Nanoparticles
Author :
Sheng-Joue Young ; Zheng-Dong Lin ; Chih-Hung Hsiao ; Chien-Sheng Huang
Author_Institution :
Dept. of Electron. Eng., Nat. Formosa Univ., Yunlin, Taiwan
Abstract :
Field emission was achieved utilizing vertically aligned carbon nanotubes (CNTs), whose external surface was decorated with Au nanoparticles (NPs). It was found that the average length and diameter of the CNTs were ~4.52 μm and 45 nm, respectively. Au NPs (around 5 nm) were coated onto CNT surfaces for field emission. The turn-ON field and current density of the Au-coated CNTs clearly indicate that the Au NPs considerably enhanced field emission. Au NP decoration effectively decreased the work function and turn-ON field.
Keywords :
carbon nanotubes; current density; field emission; gold; nanoparticles; Au; CNT surfaces; adsorbed Au nanoparticles; current density; enhanced carbon nanotube field emitter; external surface; field emission; size 4.52 mum; size 45 nm; turn-ON field; vertically aligned carbon nanotubes; work function; Carbon nanotubes; Current density; Electron emission; Gold; Nanoparticles; Surface treatment; Au nanoparticles (NPs); carbon nanotubes (CNTs); field emission; work function; work function.;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2015.2495227
