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Controlling the Growth of Multi-Wall Carbon Nanotube Arrays

Permanent Link: http://ncf.sobek.ufl.edu/NCFE003704/00001

Material Information

Title: Controlling the Growth of Multi-Wall Carbon Nanotube Arrays
Physical Description: Book
Language: English
Creator: Sherlock, Sarah P.
Publisher: New College of Florida
Place of Publication: Sarasota, Fla.
Creation Date: 2006
Publication Date: 2006

Subjects

Subjects / Keywords: Carbon
Nanotube
Growth
Chemical Vapor Deposition
Genre: bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract: Carbon nanotubes have great technological potential because of their distinct physical, electrical and thermal properties. A limiting factor in the application of carbon nanotubes is the growth of these structures. Growth is often poor or inconsistent. The goal of this study was to investigate the effects of pressure, humidity and gas flow rates to determine the optimal range of parameters for multi-wall nanotube growth. Growth was conducted using a chemical vapor deposition method. A hydrocarbon gas was thermally decomposed and deposited onto a catalyst chip. The results of this study yielded a set of conditions where carbon nanotube growth is consistent and provides tall nanotube arrays. The standard deviation of nanotube heights when grown under these conditions is less than 10 percent indicating that these results are highly reproducible. Using the results from the parametric studies in combination with kinetic data obtained, it is possible to controllably grow multi-wall carbon nanotube forests to any height between 1 �m and 1 mm by choosing the right combination of pressure, humidity, gas flow rate and growth time. The results from the gas flow rate experiments provided some evidence of the presence of a gaseous growth precursor. This gaseous precursor is the necessary component to be absorbed into the catalyst and initiate nanotube growth. These results provide pertinent information about carbon nanotube growth that will aid in their production for future technological applications.
Statement of Responsibility: by Sarah P. Sherlock
Thesis: Thesis (B.A.) -- New College of Florida, 2006
Electronic Access: RESTRICTED TO NCF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE
Bibliography: Includes bibliographical references.
Source of Description: This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Local: Faculty Sponsor: Johal, Malkait

Record Information

Source Institution: New College of Florida
Holding Location: New College of Florida
Rights Management: Applicable rights reserved.
Classification: local - S.T. 2006 S55
System ID: NCFE003704:00001

Permanent Link: http://ncf.sobek.ufl.edu/NCFE003704/00001

Material Information

Title: Controlling the Growth of Multi-Wall Carbon Nanotube Arrays
Physical Description: Book
Language: English
Creator: Sherlock, Sarah P.
Publisher: New College of Florida
Place of Publication: Sarasota, Fla.
Creation Date: 2006
Publication Date: 2006

Subjects

Subjects / Keywords: Carbon
Nanotube
Growth
Chemical Vapor Deposition
Genre: bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract: Carbon nanotubes have great technological potential because of their distinct physical, electrical and thermal properties. A limiting factor in the application of carbon nanotubes is the growth of these structures. Growth is often poor or inconsistent. The goal of this study was to investigate the effects of pressure, humidity and gas flow rates to determine the optimal range of parameters for multi-wall nanotube growth. Growth was conducted using a chemical vapor deposition method. A hydrocarbon gas was thermally decomposed and deposited onto a catalyst chip. The results of this study yielded a set of conditions where carbon nanotube growth is consistent and provides tall nanotube arrays. The standard deviation of nanotube heights when grown under these conditions is less than 10 percent indicating that these results are highly reproducible. Using the results from the parametric studies in combination with kinetic data obtained, it is possible to controllably grow multi-wall carbon nanotube forests to any height between 1 �m and 1 mm by choosing the right combination of pressure, humidity, gas flow rate and growth time. The results from the gas flow rate experiments provided some evidence of the presence of a gaseous growth precursor. This gaseous precursor is the necessary component to be absorbed into the catalyst and initiate nanotube growth. These results provide pertinent information about carbon nanotube growth that will aid in their production for future technological applications.
Statement of Responsibility: by Sarah P. Sherlock
Thesis: Thesis (B.A.) -- New College of Florida, 2006
Electronic Access: RESTRICTED TO NCF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE
Bibliography: Includes bibliographical references.
Source of Description: This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Local: Faculty Sponsor: Johal, Malkait

Record Information

Source Institution: New College of Florida
Holding Location: New College of Florida
Rights Management: Applicable rights reserved.
Classification: local - S.T. 2006 S55
System ID: NCFE003704:00001

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