Conference Proceeding

The synthesis and field emission property of carbon nanotubes on carbon fibers substrate

Chinese Acad. of Sci., Changchun;
08/2007; DOI:10.1109/IVNC.2007.4480945 ISBN: 978-1-4244-1133-7 pp.88-89 In proceeding of: Vacuum Nanoelectronics Conference, 2007. IVNC. IEEE 20th International
Source: IEEE Xplore

ABSTRACT Using ferrocene as catalyst precursor, C2H2 as carbon source, carbon nanotubes (CNTs) with uniform density were synthesized on carbon fibers substrate by floating catalyst method. The morphology and microstructure were characterized by field emission scanning electron microscope (FESEM) and high-resolution transmission electron microscopy (HRTEM). The observation showed that the length of CNTs is about 2 m, the average space between adjacent CNTs is about 300 nm and the diameter of CNT is about 45 nm. The less dense "short and stubby" aligned CNTs films should have good electron field emission characteristics. The CNTs synthesized on carbon fibers substrate has many predominances for the fabrication of cold cathode devices. Therefore, CNTs/carbon fibers may have potential application in field emission displays.

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Keywords

adjacent CNTs
 
average space
 
carbon fibers substrate
 
carbon nanotubes
 
carbon source
 
CNTs
 
CNTs films
 
CNTs synthesized
 
CNTs/carbon fibers
 
cold cathode devices
 
fabrication
 
FESEM
 
field emission displays
 
field emission scanning electron microscope
 
high-resolution transmission electron microscopy
 
morphology
 
predominances
 
stubby
 

Leyong Zeng