Title of article :
Effects of microwave plasma treatment on the field emission properties of printed carbon nanotubes/Ag nano-particles films
Author/Authors :
Yuxiang Qin *، نويسنده , , Ming Hu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
The effects of Ar microwave plasma treatment on field emission properties of the printed carbon nanotubes (CNTs) cathode films using Ag nano-particles as binder were investigated. The field emission J–E characteristics were measured at varied plasma treatment time. Significant improvement in emission current density, emission stability and uniformity were achieved for the Ar treated CNTs films, even though the plasma treatment increased the turn on electric field slightly. High-resolution transmission electron microscopy (HRTEM) and Raman spectroscopy revealed the microstructural changes of CNTs after the plasma treatment. The improved field emission properties of CNTs film can be attributed to the generation of a high density of structural defects after treatment, which increased greatly the possible emission active sites. Besides, the formation of the sharpened and open-ended CNTs tips is all helpful for improving the field emission properties of the treated CNTs.
Keywords :
Field emission , Plasma treatment , Ag nano-particles , Carbon nanotubes
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science