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Faculty of Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Electrical Conduction Mechanism in Chemical Vapour Deposition Grown Multi-Wall Carbon Nanotubes Film
Electrical Conduction Mechanism in Chemical Vapour Deposition Grown Multi-Wall Carbon Nanotubes Film
Subject
:
physics
Document Language
:
English
Abstract
:
Multi-walled carbon nanotubes are interesting systems where different aspects of conduction are observed, mostly due to their low dimensionalities and small dimensions. Electrical conduction mechanism in multi wall carbon nanotubes film is studied. The studied multi-walled nanotubes are grown by a low pressure chemical vapour deposition system. To understand the conduction mechanism in these nanotubes, temperature dependence of conductivity of the multi wall nanotubes film over a temperature range of (400-200 K) is studied. On the basis of the results, one may suggest the thermally activated conduction mechanism for the temperature range (400-300 K). The low temperature data is fitted with the hopping conduction for the transport of charge carriers in the temperature range of 300- 200 K. This hopping conduction mechanism is characterized by variable range hopping (VRH), which shows complete agreement with the Mott's type of VRH mechanism. Applying this model, a number of Mott's parameters such as density of states, hopping distance, hopping energy are calculated. The calculated values of all the studied parameters matches well the reported results on other multi-wall nanotubes film
ISSN
:
1533-4880
Journal Name
:
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume
:
15
Issue Number
:
7
Publishing Year
:
1435 AH
2015 AD
Article Type
:
Article
Added Date
:
Monday, August 21, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
F.S Al-Hazmi
Al-Hazmi, F.S
Investigator
Doctorate
Files
File Name
Type
Description
42706.pdf
pdf
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