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Tailoring The Electrical and Optical Properties of Carbon Nanotube Reinforced Transparent Tio 2 Composites by Varying Nanotube Concentrations

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Date
2019
Author
Uysal, Bengü Özuǧur
Akkaya Arier, Ümit Özlem
Pekcan, Önder
Abstract
In the present work multi-walled carbon nanotube (MWCNT)-doped TiO 2 nanocomposite films were synthesized by sol-gel method. The influence of nanotube concentration on the structural electrical and optical properties of the films was investigated. The beneficial effects of the addition of carbon nanotubes into a TiO 2 film and titania-coated MWCNTs have much in common. On the other hand this work contributes to the previous studies in terms of the optical and electrical properties of MWCNT. For this reason MWCNT/rare brookite-phased TiO 2 matrix as simple sol-gel deposited composite films were investigated in our study. The XRD studies showed that the composite film has a brookite crystal structure at the annealing temperature of 450C. According to the surface morphology investigations SEM image of nanocomposite film shows that composite film has a granular and rod-like structure. The absorbance measurements of the films were carried out by the UV-Vis spectrophotometer to investigate transparency and to calculate the bandgap energy of composite films. The surface resistivity of the MWCNT-doped TiO 2 composites decreased from 2.50×1010 to 2.20×109 ohm/sq with increase in MWCNT content. © 2019 World Scientific Publishing Company.

URI

https://hdl.handle.net/20.500.12469/1338
https://doi.org/10.1142/S0218625X19501038

Collections

  • Araştırma Çıktıları / Scopus [1565]
  • Biyoinformatik ve Genetik / Bioinformatics and Genetics [220]

Keywords

hydrogen sensing
MWCNT/TiO 2 composites
sol-gel method
tunable bandgap energy

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