Efficient Carbon Nanotube Field Emitter using Electrospun Carbon Nanofibers as a Flexible Electrode

2009 ◽  
Vol 1173 ◽  
Author(s):  
Hidetoshi Matsumoto ◽  
Kenichi Suzuki ◽  
Kazuma Tsuboi ◽  
Mie Minagawa ◽  
Akihiko Tanioka ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fibers ◽  
Current Density ◽  
Chemical Vapor ◽  
Light Sources ◽  
Flexible Electrode ◽  
Field Emitter ◽  
Field Emitter Arrays ◽  
Thin Carbon ◽  
Cnt Field Emitter

AbstractThermal-stable, conductive, and flexible carbon fabric (CF), which is composed of thin carbon fibers prepared by electrospinning, was used for the substrate of carbon nanotube (CNT) field emitter arrays. The field emitter arrays were prepared by chemical vapor deposition (CVD). The current density-electric field characteristics revealed that the CNT field emitter arrays on CF produced a higher current density at a lower turn-on voltage compared to ones on a Si substrate. This emitter integrated with a gate electrode based on hierarchy-structured carbon materials, CNTs on CF, can be used for light sources, displays, and other electronic devices.

FABRICATION AND ELECTRON MICROSCOPY CHARACTERIZATION OF METAL-GATED CARBON NANOTUBE EMITTER ARRAYS

2006 ◽  
Vol 05 (04n05) ◽  
pp. 579-583 ◽  
Author(s):  
JIANFENG WU ◽  
LIFENG DONG ◽  
JEREMY PETTY ◽  
CHIACHING PAN ◽  
JUN JIAO
Keyword(s):  
Carbon Nanotube ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Sol Gel ◽  
Chemical Vapor ◽  
Field Emitter ◽  
Field Emitter Arrays ◽  
Fe Catalyst ◽  
Cnt Field Emitter ◽  
Induced Decomposition

A technique was investigated for the fabrication of triode-type carbon nanotube (CNT) field emitter arrays, where an integrated extraction gate was built between the nanotube cathode and the anode. The gate improves the control capability of emission currents. To fabricate the metal-gated CNT field emitter arrays, well ordered cells were generated by focused ion beam (FIB) milling of platinum ( Pt ) coated silicon ( Si ) substrate and then modified by chemical etching. Two types of catalyst elements iron ( Fe ) and nickel ( Ni ), were used for growing the CNTs inside the cells. The methods for depositing catalysts into the cells include spin coating sol–gel Fe , FIB induced decomposition of ferrocene and sputter coating pure Ni . CNT growth was carried out by a chemical vapor deposition (CVD) process. The results suggest that the CNTs grew from inside the cells where the catalysts were located. In comparison, the CNTs synthesized from the sol–gel Fe catalyst were straighter than those from ferrocene Fe and pure Ni . The density and orientation of the CNTs in each cell are directly related to the type and quantity of the catalysts and are also affected by the size of the cells.

Large field emission current density from well-aligned carbon nanotube field emitter arrays

2001 ◽  
Vol 1 (1) ◽  
pp. 61-65 ◽  
Author(s):  
Jung Inn Sohn ◽  
Seonghoon Lee ◽  
Yoon-Ho Song ◽  
Sung-Yool Choi ◽  
Kyoung-Ik Cho ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Current Density ◽  
Emission Current Density ◽  
Emission Current ◽  
Large Field ◽  
Field Emitter ◽  
Field Emitter Arrays ◽  
Field Emission Current ◽  
Field Emission Current Density

High emission current density, vertically aligned carbon nanotube mesh, field emitter array

2010 ◽  
Vol 97 (11) ◽  
pp. 113107 ◽  
Author(s):  
Chi Li ◽  
Yan Zhang ◽  
Mark Mann ◽  
David Hasko ◽  
Wei Lei ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Current Density ◽  
Emission Current Density ◽  
Emission Current ◽  
Field Emitter ◽  
High Emission ◽  
Vertically Aligned ◽  
Emitter Array ◽  
Field Emitter Array
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