Advanced Ceramics Progress

Advanced Ceramics Progress

Optical Properties of Flexible Nanocomposites Synthesized as Powders via the Hydrothermal Method Under Ionizing Excitations

Document Type : Original Research Article

Authors
Danial Moradi 1
Mona Hosseini 1
Maryam Hajiebrahimi 2
Sanaz Alamdari 3
Omid Mirzaee 4
1 BSc Student, Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Iran.
2 Research Assistant, Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan , Iran.
3 Assistant Professor, Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.
4 Professor, Faculty of Materials & Metallurgical Engineering, Semnan University, Semnan, Iran.
10.30501/acp.2024.486443.1166
Abstract
In this study, cadmium tungstate (CdWO₄) and silver-doped cadmium tungstate (CdWO₄:Ag)/polyvinyl alcohol (PVA) nanocomposite films were successfully fabricated. The preparation of the nanocomposite films was accomplished through a straightforward hydrothermal procedure following an established protocol. XRD, EDX, and Fourier-transform infrared (FTIR) spectroscopy confirmed the successful synthesis of CdWO₄ and CdWO₄:Ag nanopowders. FESEM images revealed mean particle sizes of approximately 345 nm for CdWO₄ and 267 nm for CdWO₄:Ag nanopowders, respectively. The luminescence characteristics of the synthesized nanoparticles were evaluated under UV irradiation. The CdWO₄:Ag nanoparticles exhibited significantly higher luminescence intensity within the blue-green spectrum compared to the pure CdWO₄ sample. The radiative response of the samples was meticulously assessed using an (²⁴¹Am) alpha source, with the doped sample demonstrating a marked improvement in the count rate compared to the CdWO₄ composite. Furthermore, the CdWO₄:Ag composite exhibited acceptable counting efficiency, performing at levels comparable to more expensive alpha counters. These findings suggest that the CdWO₄:Ag/PVA nanocomposite holds significant potential as an effective scintillation material optimized for radiation detection applications.
Keywords
CdWO4
Silver Dopant
Co-precipitation
Nanoparticles
Scintillation Properties

Subjects

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  • Receive Date 31 October 2024
  • Revise Date 14 December 2024
  • Accept Date 22 December 2024