Copper phthalocyanine functionalized single-walled carbon nanotubes: Thin films for optical detection

Hikmat Banimuslem, Aseel Hassan, Tamara Basova, Mahmut Durmus, Sinem Tuncel, Aliye Asli Esenpinar, Ayse Gül Gürek, Vefa Ahsen

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Thin films of non-covalently hybridized single-walled carbon nanotubes (SWCNT) and tetra-substituted copper phthalocyanine (CuPcR4) molecules have been produced from their solutions in dimethylformamide (DMF). FTIR spectra revealed the IT-IT interaction between SWCNTs and CuPcR4 molecules. DC conductivity of films of acid-treated SWCNT/CuPcR4 hybrid has increased by more than three orders of magnitude in comparison with conductivity of CuPcR4 films. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) measurements have shown that films obtained from the acid-treated SWCNTs/CuPcR4 hybrids d emonstrated more homogenous surface which is ascribed to the highly improved solubility of the hybrid powder in DMF. Using total internal reflection ellipsometry spectroscopy (TIRE), thin films of the new hybrid have been examined as an optical sensing membrane for the detection of benzo[a]pyrene in water to demonstrate the sensing properties of the hybrid.

Original languageEnglish
Pages (from-to)2157-2167
Number of pages11
JournalJournal of Nanoscience and Nanotechnology
Volume15
Issue number3
DOIs
Publication statusPublished - 1 Jan 2015

Keywords

  • Hybrid materials
  • Metal phthalocyanine
  • Microscopy
  • Optical detection
  • Single-walled carbon nanotubes
  • Spectral ellipsometry
  • Thin films

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