scholarly journals Growth of dense CNT on the multilayer graphene film by the microwave plasma enhanced chemical vapor deposition technique and their field emission properties

RSC Advances ◽  
2015 ◽  
Vol 5 (109) ◽  
pp. 90111-90120 ◽  
Author(s):  
Atul Bisht ◽  
S. Chockalingam ◽  
O. S. Panwar ◽  
A. K. Kesarwani ◽  
B. P. Singh ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Microwave Plasma ◽  
Graphene Film ◽  
Chemical Vapor ◽  
Multilayer Graphene ◽  
Deposition Technique ◽  
Chemical Vapor Deposition Technique ◽  
Field Emission Properties ◽  
Vapor Deposition Technique

Catalyst assisted carbon nanotubes (CNTs) were grown on multilayer graphene (MLG) on copper and silicon substrates by the microwave plasma enhanced chemical vapor deposition technique.

Fabrication and Field Emission Properties of Carbon Nanotube Cathodes

1999 ◽  
Vol 593 ◽  
Author(s):  
C. Bower ◽  
O. Zhou ◽  
W. Zhu ◽  
A. G. Ramirez ◽  
G. P. Kochanski ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Microwave Plasma ◽  
Spray Deposition ◽  
Chemical Vapor ◽  
Deposition Technique ◽  
Field Emission Properties ◽  
Large Current ◽  
Vapor Deposition Technique

ABSTRACTA variety of carbon nanotube films have been fabricated and tested as cold cathodes. A spray deposition technique was developed for processing as-grown bulk nanotubes, both single-walled and multi-walled, into films of randomly oriented nanotubes. Films of randomly oriented multi-walled nanotubes were grown using thermal chemical vapor deposition, and arrays of well-aligned multi-walled nanotubes have been fabricated using a microwave plasma enhanced chemical vapor deposition technique. The emission current-voltage (I-V) characteristics of these nanotube cathodes have been measured. Both multi-walled (random and aligned) and single-walled carbon nanotubes exhibit low turn-on fields (∼ 2 V/μm to generate 1 nA) and threshold fields (< 5 V/μm to generate 10 mA/cm2). Significantly, these cathodes were capable of operation at very large current densities (> 1A/cm2), making them candidates for application in a variety of vacuum microelectronic devices.

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