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Photoluminescence and thermoluminescence dosimetry properties of Ag/Y co-doped ZnO nanophosphor for radiation measurements |
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| Authors: | Hammam Abdurabu Thabit Abd Khamim Ismail Norlaili A Kabir Mohammad Hasan Abu Mhareb Abdulmajeed Muidh Al Mutairi Abdullah Bafaqeer Yasser Alajerami Mohammad Ibrahim Abualsayyed |
| Institution: | 1. Department of Physics, Universiti Teknologi Malaysia, Johor Bahru, Malaysia;2. Department of Physics, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
Contribution: ?Investigation, Project administration, Supervision, Validation;3. School of Physics, Universiti Sains Malaysia, Penang, Malaysia Contribution: Funding acquisition, ?Investigation, Methodology, Supervision;4. Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia;5. School of Physics, Universiti Sains Malaysia, Penang, Malaysia Contribution: ?Investigation, Methodology;6. Interdisciplinary Research Center for Refining and Advanced Chemicals, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia Contribution: Validation, Visualization;7. Department of Medical Radiography, Al-Azhar University, Gaza Strip, Palestine;8. Renewable Energy and Environmental Technology Center, University of Tabuk, Tabuk, Saudi Arabia Department of Physics, Faculty of Science, Isra university, Amman, Jordan Contribution: Writing - original draft, Writing - review & editing |
| Abstract: | This work explores the thermoluminescence (TL) and photoluminescence (PL) properties of Ag/Y co-doped zinc oxide (ZnO) nanophosphor. The proposed dosimeter was prepared by the coprecipitation method and sintered at temperatures from 400°C to 1000°C in an air atmosphere. Raman spectroscopy was studied to investigate the structural features of this composition. The new proposed dosimeter revealed two peaks at 150°C and 175°C with a small shoulder at high temperature (225°C). The PL spectrum showed strong green emissions between 500 to 550 nm. The Raman spectrum showed many bands related to the interaction between ZnO, silver (Ag), and yttrium oxide (Y2O3). The rising sintering temperature enhanced the TL glow curve intensity. The Ag/Y co-doped ZnO nanophosphor showed an excellent linearity index within a dose from 1 to 4 Gy. The minimum detectable dose (MDD) of the Ag/Y co-doped ZnO nanopowder (pellets) equaled 0.518 mGy. The main TL properties were achieved in this work as follows: thermal fading (37% after 45 days at 1 and 4 Gy), optical fading (53% after 1 h and 68% after 6 h by exposure to sunlight), effective atomic number (27.6), and energy response (flat behavior from 0.1 to 1.3 MeV). Finally, the proposed material shows promising results nominated to be used for radiation measurements. |
| Keywords: | Ag/Y co-doped ZnO nanophosphor glow curve photoluminescence Raman spectroscopy sintering thermoluminescence dosimeter |