umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Patterned Nanocomposite of Carbon Nanotube/Polymer
Umeå University, Faculty of Science and Technology, Department of Physics.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Single walled carbon nanotubes (SWCNTs) are carbon based nanostructures with extraordinary electronical and mechanical properties. They are used in a wide range of applications, usually embedded in polymer as fillers to form polymer based nanocomposites, in order to affect the electronic behavior of the polymer matrix. However, as the nanotubes properties are directly dependent on their intrinsic structure, it is necessary to select specific nanotubes depending on the application. In addition, as randomly oriented CNTs (as Filler) embedded in the polymer matrix show lower electrical conductivity than expected, alignment of CNTs in the polymer matrix can help to improve the nanocomposite electrical conductivity.

In this thesis, focus is placed on the electrical properties of the produced SWCNTs/Polymer nanocomposites. A simple patterning method called nanoimprint lithography is presented which allows the use of extremely low amounts of nanotubes in order to increase the electrical conductivity of isolated polymers such as polystyrene (PS). In addition, a flexible mold to pattern nanocomposite films, leading to the creation of conducting nanotube networks, resulting in Alignment of SWCNTs (from the bottom of the film to the top of the imprinted patterns) inside the polymer matrix. The project further investigated the effect of different imprint temperatures and pressures on the electrical conductivity of produced nanocomposite and a trend is found due to the variation of parameters. Finally an optimum imprint condition based on maximum achieved conductivity is suggested. During different steps of sample preparations, the samples were characterized by different microscopic and spectroscopic techniques such as Atomic Force Microscopy (AFM), optical microscopy, Spectroscopic Ellipsometer, electrical measurements and Raman spectroscopy.

Place, publisher, year, edition, pages
2017.
National Category
Nano Technology
Identifiers
URN: urn:nbn:se:umu:diva-133332OAI: oai:DiVA.org:umu-133332DiVA: diva2:1087074
Subject / course
Fysik D - examensarbete II
Educational program
Master's Programme in Physics
Available from: 2017-04-10 Created: 2017-04-05 Last updated: 2017-04-10Bibliographically approved

Open Access in DiVA

Master thesis(3524 kB)29 downloads
File information
File name FULLTEXT01.pdfFile size 3524 kBChecksum SHA-512
05036436409662359b77ba041609a330cbc2081476dce2ccb2714c9875647af9efc6b2126f589faaad7799e8ca8ebd31d0533460d6284ad132e120cdfcaac4ab
Type fulltextMimetype application/pdf

By organisation
Department of Physics
Nano Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 29 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 54 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf