Photoluminescence and thermoluminescence dosimetry properties of Ag/Y co-doped ZnO nanophosphor for radiation measurements.

Autor: Abdurabu Thabit H; Department of Physics, Universiti Teknologi Malaysia, Johor Bahru, Malaysia., Ismail AK; Department of Physics, Universiti Teknologi Malaysia, Johor Bahru, Malaysia., Kabir NA; School of Physics, Universiti Sains Malaysia, Penang, Malaysia., Abu Mhareb MH; Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.; Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia., Al Mutairi AM; School of Physics, Universiti Sains Malaysia, Penang, Malaysia., Bafaqeer A; Interdisciplinary Research Center for Refining and Advanced Chemicals, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia., Alajerami Y; Department of Medical Radiography, Al-Azhar University, Gaza Strip, Palestine., Abualsayyed MI; Renewable Energy and Environmental Technology Center, University of Tabuk, Tabuk, Saudi Arabia.; Department of Physics, Faculty of Science, Isra university, Amman, Jordan.
Jazyk: angličtina
Zdroj: Luminescence : the journal of biological and chemical luminescence [Luminescence] 2024 Feb; Vol. 39 (2), pp. e4683.
DOI: 10.1002/bio.4683
Abstrakt: 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 (Y 2 O 3 ). 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.
(© 2024 John Wiley & Sons Ltd.)
Databáze: MEDLINE
Externí odkaz: