Evidence of multiwall carbon nanotube deformation caused by poly(3-hexylthiophene) adhesion
Data(s) |
07/03/2011
|
---|---|
Resumo |
We show that when a soft polymer like Poly(3-hexyl-thiophene) wraps multiwall nanotubes by coiling around the main axis, a localized deformation of the nanotube structure is observed. High resolution transmission electron microscopy shows that radial compressions of about 4% can take place, and could possibly lead to larger interlayer distance between the nanotube inner walls and reduce the innermost nanotube radius. The mechanical stress due to the polymer presence was confirmed by Raman spectroscopic observation of a gradual upshift of the carbon nanotube G-band when the polymer content in the composites was progressively increased. Vibrational spectroscopy also indicates that charge transfer from the polymer to the nanotubes is responsible for a peak frequency relative downshift for high P3HT-content samples. Continuously acquired transmission electron microscopy images at rising temperature show the MWCNT elastic compression and relaxation due to polymer rearrangement on the nanotube surface. |
Formato |
application/pdf |
Identificador | |
Publicador |
American Chemical Society |
Relação |
http://eprints.qut.edu.au/40966/1/Manuscript_Giulianini_EPRINTS.pdf DOI:10.1021/jp2000267 Giulianini, Michele, Waclawik, Eric R., Bell, John M., De Crescenzi, Maurizio, Castrucci, Paola, Scarselli, Manuela, Diociauti, Marco, Casciardi, Stefano, & Motta, Nunzio (2011) Evidence of multiwall carbon nanotube deformation caused by poly(3-hexylthiophene) adhesion. The Journal of Physical Chemistry Part C: Nanomaterials and Interfaces, p. 110307161506073. |
Direitos |
Copyright 2011 American Chemical Society This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record |
Fonte |
Faculty of Built Environment and Engineering; Faculty of Science and Technology |
Palavras-Chave | #100700 NANOTECHNOLOGY #100708 Nanomaterials #100712 Nanoscale Characterisation #Carbon Nanotubes #Poly(3-hexyl-thiophene) #HRTEM #Raman |
Tipo |
Journal Article |