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Helena Alexandersson

Helena Alexanderson

Professor

Helena Alexandersson

Investigation of Thermoluminescence Properties of Li2B4O7 : Ag, Cu, Ni Nano-Composites

Författare

  • Rabah Bouras
  • Fawzeia Khamis
  • Ahmed Kadari
  • Mokhtar Halimi
  • Abdelkader Azaiz
  • Helena Alexanderson

Summary, in English

The present paper explores the TL characteristics of Ag, Cu and Ni doped and co-doped Li2B4O7 nano-composites (NCs). These NCs were synthesized via a Sol–gel process. The influence of doping agents on the optical and TL properties of Li2B4O7 NCs was investigated. Obtained nano-composites were calcined at 700 °C for 8 h. The incorporation of Ag, Cu and Ni impurities in Li2B4O7 lattice has been confirmed by the FT-IR spectra; this may be explained by the formation of Ag–O (513 cm−1), Cu–O (497 cm−1) and Ni–O (419 cm−1) bonds. XRD diffractograms have shown the only crystallographic phases tetragonal. The crystallite size was found to be in the range from 355 to 463 Å. The set of kinetic parameters have been calculated. TL glow curves showed a multiple TL peaks after various beta irradiation. The addition of Ag, Cu and Ni ions induced changes in the structure and the kinetic properties of the TL glow curves, modifying the radiative recombination efficiency. TL response results suggest that the Ag, Cu, Ni co-doped Li2B4O7 nano-composites phosphor present a good potential for beta irradiation dosimeter applications.

Avdelning/ar

  • Kvartärgeologi

Publiceringsår

2023

Språk

Engelska

Sidor

2347-2359

Publikation/Tidskrift/Serie

Journal of Cluster Science

Volym

34

Issue

5

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Condensed Matter Physics

Nyckelord

  • Lithium tetraborate
  • Sol–gel process
  • Thermoluminescence

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1040-7278