| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Gamma induced changes in Makrofol/CdSe nanocomposite films |
| Ali A. Alhazime1, M. ME. Barakat2,3, Radiyah A. Bahareth4, E. M. Mahrous1, Saad Aldawood5, S. Abd El Aal6,7, and S. A. Nouh1,8,† |
1 Physics Department, Faculty of Science, Taibah University, Medina, Saudi Arabia;
2 Department of Physics, Faculty of Science, Taibah University, Yanbu, Saudi Arabia;
3 Department of Physics, Faculty of Science, Alexandria University, Alexandria, Egypt;
4 Physics Department, College of Science, Jeddah University, Jeddah, Saudi Arabia;
5 Department of Physics and Astronomy, College of Science, P. O. BOX 2455, King Saud University, Saudi Arabia;
6 Center of Radiation Research and Technology, Egyptian Atomic Authority, Nasr City, Cairo, Egypt;
7 Qassim University, P. B. 6644, Buraidah 51452, Qassim, Saudi Arabia;
8 Physics Department, Faculty of Science, Ain Shams University, Cairo, Egypt |
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Abstract We applied an ex-situ casting procedure to prepare a nanocomposite (NCP) from Makrofol polycarbonate (PC) and CdSe nanoparticles. The CdSe nanoparticles were prepared by a thermolysis procedure in the presence of N2 gas flow. Rietveld refinement of x-ray data illustrated that the CdSe adopts a cubic zinc blend structure of 6.057 Å lattice parameter and 2 nm typical grain size. Samples from the prepared NCP were exposed to γ dosages (20 kGy-250 kGy). The modifications induced in the NCP films owing to γ dosages have been studied. The γ irradiation (50 kGy-250 kGy) causes crosslinks that reduce the optical bandgap from 4.15 eV to 3.81 eV, associated with an increase in dielectric parameters and refractive index. This is attributed to an increase in the mass fraction of the disordered regions as specified by x-ray diffraction. The PC-CdSe NCP was found to have a reaction to color modification which makes it suitable for saleable reproduction on a printing press.
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Received: 06 December 2021
Revised: 04 January 2022
Accepted manuscript online: 07 January 2022
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PACS:
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78.66.-w
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(Optical properties of specific thin films)
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78.67.Sc
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(Nanoaggregates; nanocomposites)
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62.23.Pq
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(Composites (nanosystems embedded in a larger structure))
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| Fund: Researchers Supporting Project Number (RSP-2021/328), King Saud University, Riyadh, Saudi Arabia. |
Corresponding Authors:
S. A. Nouh
E-mail: samin273@gmail.com
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Cite this article:
Ali A. Alhazime, M. ME. Barakat, Radiyah A. Bahareth, E. M. Mahrous,Saad Aldawood, S. Abd El Aal, and S. A. Nouh Gamma induced changes in Makrofol/CdSe nanocomposite films 2022 Chin. Phys. B 31 097802
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