Luminescence Spectroscopy of ?-ray irradiated KI, KCl doped with Terbium ion Crystals

Authors

  • S.Bangaru  Department of Physics, Arignar Anna Government Arts College, Namakkal, Tamil Nadu, India
  • V.Shanmugam  Department of Physics, Arignar Anna Government Arts College, Namakkal, Tamil Nadu, India
  • D.Roobanguru  Department of Physics, Arignar Anna Government Arts College, Namakkal, Tamil Nadu, India

Keywords:

Photoluminescence, Thermoluminescence, γ-ray irradiation

Abstract

Terbium doped KI, KCl single crystals were prepared by Bridgman Stockbarger technique and characterization results such as optical absorption, Photoluminescence (PL), Thermoluminescence (TL), Thermostimulated emission (TSE) and Photostimulated emission (PSE) were investigated. The Optical absorption measurements indicate the formation of F and V-centre in the crystal after γ-ray irradiation process. Photoluminescence studies exhibit characteristics Tb3+ emission due to transitions from 5D3 and 5D4 levels to various levels 7FJ (J=5,6) in both matrix. The deconvoluted glow peak reveals two clearly visible distinct peaks in both matrix and kinetic parameters calculated using Chen’s peak shape method. The characteristic emission due to Tb3+ ions in the spectral distribution under PSE and TSE confirms the participation of the Tb3+ ions in the recombination process.

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International Journal of Scientific Research in Science and Technology

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Published

2017-12-31

Issue

Volume 2, Issue 3, May-June-2016

Section

Research Articles

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How to Cite

[1]
S.Bangaru, V.Shanmugam, D.Roobanguru "Luminescence Spectroscopy of ?-ray irradiated KI, KCl doped with Terbium ion Crystals" International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011,Volume 2, Issue 3, pp.97-103, May-June-2016.