Thermoluminescence properties of new ZnO nanophosphors exposed to beta irradiation

C. Cruz-Vázquez*, R. Bernal, S. E. Burruel-Ibarra, H. Grijalva-Monteverde, M. Barboza-Flores

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

44 Scopus citations

Abstract

Novel ZnO nanophosphors were synthesized by thermal annealing of ZnS powders obtained by precipitation in a chemical bath deposition reaction. Pellet-shape samples were exposed to beta radiation in order to investigate their dosimetric capabilities under ionizing radiation. The dependence of thermoluminescence response in the 0.15-10.5 kGy dose range increased as the radiation dose increased. The composition and structure of the ZnO samples are dependent on the annealing time and temperature. Energy-dispersive X-ray spectrometry analyses and X-ray diffraction patterns, confirmed the change from amorphous ZnS to nanocrystalline ZnO (zincite) structure. The samples were beta irradiated and their thermoluminescence response as a function of dose exhibited good linear ranges, which make them very promising detectors and dosimeters suitable for ionizing radiation.

Original languageEnglish
Pages (from-to)1235-1239
Number of pages5
JournalOptical Materials
Volume27
Issue number7
DOIs
StatePublished - Apr 2005
EventProceedings of the First Topical Meeting on Nanostructured Materials and Nanotechnology CIO 2004 -
Duration: 22 Sep 200424 Sep 2004

Bibliographical note

Funding Information:
The authors gratefully acknowledge the financial support for this work from CONACyT (México), under Grant J35222-E, from SESIC-SEP (México) Grant PROMEP-UNISON-PTC-01-01, and from Universidad de Sonora.

Keywords

  • Dosimetry
  • Nanophosphors
  • Radiation detectors
  • Thermoluminescence
  • Zinc oxide

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