Synthesis, characterization and optical properties of multi-walled carbon nanotubes/aniline-o-anthranilic acid copolymer nanocomposite thin films

• Published in: Journal of materials science. Materials in electronics 2018-10, Vol.29 (19), p.16702-16714
• Main Authors: Abdel-Aziz, M. H., Al-Hossainy, A. F., Ibrahim, A., Abd El-Maksoud, S. A., Zoromba, M. Sh, Bassyouni, M., Abdel-Hamid, S. M. S., Abd-Elmageed, A. A. I., Elsayed, I. A., Alqahtani, O. M.
• Format: Article
• Language: English
• Subjects: Aniline; Characterization and Evaluation of Materials; Chemical synthesis; Chemistry and Materials Science; Copolymers; Materials Science; Multi wall carbon nanotubes; Nanocomposites; Nanotubes; Optical and Electronic Materials; Optical properties; Plates (structural members); Resistance factors; Shunt resistance; Thin films
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-018-9763-z

Carboxylic functionalized multi-walled carbon nanotubes/aniline-anthranilic acid copolymer composites with different amounts of MWCNTs were produced by the method of in situ oxidative polymerization. Thin films of the composites were fabricated by thermal evaporation method within the thickness range of 150–200 nm. The structural characteristics of the investigated composites were studied by various techniques. SEM images showed that the resulting nanoparticles have irregular entangled like-plate layers with an average diameter range of 40–60 nm. Indirect optical band gaps E g1 and E g2 were calculated depending on the energy range of composite thin films. Electronic parameters of MWCNTs/PANAA thin film, including diode ideality factor (n), series resistance (R s ) and shunt resistance (R sh ) were determined from the I–V characteristic in the dark under different temperatures. The values of n, R s , and R sh were found to be 3.80, 5.6 × 10 4 (Ω), and 1.64 × 10 6 (Ω), respectively at room temperature.