Infrared and Raman investigation of carbon nanotube-polyallylamine hybrid systems

Hajnalka Mária Tóháti, Bea Botka, Katalin Németh, Áron Pekker, Rudi Hackl, K. Kamarás

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Non-covalent functionalization of carbon nanotubes (CNTs) by polymers or aromatic systems is a rapidly emerging field. Its importance originates in the possibility of combining special (optical, electric, or dispersive) properties of the added molecules with the mechanical stability of nanotubes. A special application is to use the polymers as interfaces between nanotubes and metallic nanoparticles ("molecular glue"). Crucial to all applications is an experimental tool to characterize the interaction strength between the nanotubes and the associated species. In this paper, we study hybrids of single-walled nanotubes (SWNT) and polyallylamine obtained from poly(allylamine hydrochloride) (PAH) at high pH. We use attenuated total reflection (ATR) spectroscopy and Raman spectroscopy to understand how polyallylamine covers the surface of the nanotubes. The interaction of the evanescent field on the surface of the nanotube with the vibrations of the adsorbed species invokes surface selection rules and, hence, surface-attenuated infrared absorption (SAIRA). Raman spectra prove diameter-selective solubilization of the polymer-covered nanotubes.

Original languageEnglish
Pages (from-to)2884-2886
Number of pages3
JournalPhysica Status Solidi (B) Basic Research
Volume247
Issue number11-12
DOIs
Publication statusPublished - Dec 2010

Fingerprint

Carbon Nanotubes
Hybrid systems
Nanotubes
Carbon nanotubes
nanotubes
carbon nanotubes
Infrared radiation
Polymers
polymers
Evanescent fields
glues
Glues
Mechanical stability
Infrared absorption
hydrochlorides
polycyclic aromatic hydrocarbons
Polycyclic aromatic hydrocarbons
polyallylamine
spectroscopy
infrared absorption

Keywords

  • ATR-IR
  • Poly(allylamine hydrochloride)
  • Single-walled carbon nanotubes
  • Wrapping

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Infrared and Raman investigation of carbon nanotube-polyallylamine hybrid systems. / Tóháti, Hajnalka Mária; Botka, Bea; Németh, Katalin; Pekker, Áron; Hackl, Rudi; Kamarás, K.

In: Physica Status Solidi (B) Basic Research, Vol. 247, No. 11-12, 12.2010, p. 2884-2886.

Research output: Contribution to journalArticle

Tóháti, Hajnalka Mária ; Botka, Bea ; Németh, Katalin ; Pekker, Áron ; Hackl, Rudi ; Kamarás, K. / Infrared and Raman investigation of carbon nanotube-polyallylamine hybrid systems. In: Physica Status Solidi (B) Basic Research. 2010 ; Vol. 247, No. 11-12. pp. 2884-2886.
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