The Effect of Nickel Bromide Nanoparticles on Optical and Thermal Properties of Polystyrene Polymer
| Authors | Mohammed Al-Tweissi1, Ismail Tarawneh2 |
| Affiliations |
1Physics Department, Collage of Science, Al–Hussein Bin Talal University, P.O. Box 20, Ma’an, Jordan 2Physics Department, The University of Jordan, 11942 Amman, Jordan |
| Е-mail | weissi@ahu.edu.jo |
| Issue | Volume 17, Year 2025, Number 1 |
| Dates | Received 08 January 2025; revised manuscript received 15 February 2025; published online 27 February 2025 |
| Citation | Mohammed Al-Tweissi, Ismail Tarawneh, J. Nano- Electron. Phys. 17 No 1, 01023 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(1).01023 |
| PACS Number(s) | 78.66.Sq, 81.20. – n |
| Keywords | Optical properties (22) , Thermal conductivity (3) , Polystyrene, Nickel bromide, PS/NiBr2 thin films, Optical energy gap. |
| Annotation |
The optical properties and thermal conductivity of conductive polymer composites made of polystyrene (PS) Nickel bromide Nanoparticles (NiBr2) were studied under different measuring conditions: Nickel bromide filler concentrations (0, 2, 4, 8, and 12 wt. %), ultraviolet radiation wavelength, and temperature range (30-105 °C), The solid electrolyte thin films were prepared using the solution cast method, Absorption and reflectance spectra of UV-radiation were recorded in the wavelength range 300-800 nm using a spectrophotometer. The optical energy gap and the basic optical constants, refractive index, and dielectric constants of the prepared films have been investigated and showed a clear dependence on the NiBr2 concentration. The analysis of the optical results showed that the electronic transitions are direct in the k-space. The thermal conductivity (k) of the prepared thin films was studied as a function of temperature, and NiBr2 concentration. It was found that thermal conductivity is enhanced by the addition of the NiBr2 content and temperature. During the heating process, the phonons are activated and electrons hopping to higher localized energy states, producing an enhancement in the thermal conductivity. |
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