Fabrication and characterization of carbon nanotube triodes
Journal
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Journal Volume
40
Journal Issue
5 A
Pages
3468-3473
Date Issued
2001
Author(s)
Abstract
To achieve high emission current density, carbon nanotube triodes have been proposed using recessed oxide as the insulator between the gate and the carbon nanotubes to replace the conventional spacer. An anode current of 10 μA was achieved with a gate voltage of 98 V for a nanotube sample prepared with a growth time of 12 min. Carbon nanotubes synthesized with various growth times were analyzed using a scanning electron microscope and Raman spectroscopy. By increasing the growth time, longer carbon nanotubes were obtained. Effects of the length of the carbon nanotubes on the field emission of the triodes are discussed. Enhanced luminance was obtained as the anode voltage increased from 600 V to 1000 V. Such carbon nanotube triodes are promising for utilization in future field-emission displays.
Subjects
Aligned carbon nanotubes;Field-emission triodes;Microwave plasma-enhanced chemical vapor deposition
Other Subjects
Current density;Electric insulators;Field emission displays;Gates (transistor);Plasma enhanced chemical vapor deposition;Raman spectroscopy;Scanning electron microscopy;Field-emission triodes;Carbon nanotubes
Type
journal article