Plasma-assisted surface modification of CNT and CN-PVC nanocomposites for enhanced electro-optic performance
نویسندگان
1 Medical Physics Department, College of Science, Al-Nahrain University, Jadriyah, Baghdad, Iraq
2 Department of Physics, College of Science, Al-Nahrain University, Jadriyah, Baghdad, Iraq
3 Department of Physics, College of Science, Al-Nahrain University, Jadriyah, Baghdad, Iraq
4 Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq
5 Department of Chemistry, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
6 Department of Chemistry, College of Science, Al-Nahrain University, Jadriyah, Baghdad, Iraq
7 Medical Physics Department, College of Science, Al-Nahrain University, Jadriyah, Baghdad, Iraq
8 Department of Chemistry, College of Science, Al‐Nahrain University, Baghdad, Iraq
9 Department of Chemistry, College of Science, Al-Nahrain University, Al-Jadriyah Bridge Street, Baghdad, IRAQ
10 Department of Chemistry, College of Science, Al-Nahrain University, Jadriyah, Baghdad, Iraq
11 Department of Mechanical Engineering, College of Engineering, Al-Nahrain University, Jadriyah, Baghdad, Iraq
12 Chemical and Petrochemical Research Center, Corporation of Research and Industrial Development, Ministry of Industry and Minerals, Baghdad, Iraq
13 Chemical and Petrochemical Research Center, Corporation of Research and Industrial Development, Ministry of Industry and Minerals, Baghdad, Iraq
14 Institute of Laser for Postgraduate Studies, University of Baghdad, Baghdad, Iraq
15 Department of Chemistry, College of Science, Al-Nahrain University, Jadriyah, Baghdad, Iraq
16 Department of Chemistry, College of Science, Al-Nahrain University, Jadriyah, Baghdad, Iraq
doi
10.22036/ncr.2026.530204.1489چکیده
New spectrally nanocomposite films based on nano coatings have been developed to achieve high absorption performance. The poly(vinyl chloride) (PVC) was dissolved in THF and blended with fixed concentrations of carbon nanotube and carbon nanoparticles (5% wt. CNT, 5% wt. CN, and 2.5% wt. CNT+CN) via the casting technique to make nanocomposite films. PVC nanocomposite films have been developed to create an economical coating that reinforces the PVC matrix. The coating exhibits high absorptivity, and the optical properties were computed over the wavelength range of 250-1350 nm at a room temperature of 30 oC. The transmittance and reflectance were decreased, while the skin depth and optical density were increased, and the absorbance coefficient and dielectric constant were increased. The direct and indirect energy gap (Eg) of the films were decreased from 2.8 to 2.4 eV and from 3.4 to 2.9 eV after adding CNT with CN. The Urbach energy (Eu) increased from 1.24 to 2.71 eV. The XRD test confirms that the films have amorphous structures. Scanning electron microscopy (SEM) analysis was used to show the surface morphology of the thin films. Consequently, the atomic force microscopy (AFM) measurements indicated increased surface roughness (SR) from 5.19 to 14.5 nm for the doped PVC thin films, and the root mean square (RMS) increased from 6.65 to 16.6 nm. These modified PVC nanocomposite thin films find potential applications in various industries, including air transport components, light-emitting diodes, laser sensors, UV energy shielding, light-harvesting devices, memory devices, and light-conversion technologies.
