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Title: TL and PL studies on cubic fluoroperovskite single crystal (KMgF{sub 3}: Eu{sup 2+}, Ce{sup 3+})

The perovskite-like KMgF{sub 3} polycrystalline compounds were synthesized by standard solid state reaction technique. Phase purity of the synthesized compounds was analyzed by powder X-ray diffraction technique. Single crystals of (0.2 mol% of EuF{sub 3} and CeF{sub 3}) Co-doped KMgF{sub 3} have been grown from melt by using a vertical Bridgman-Stockbarger method. Thermoluminescence (TL) characteristics of KMgF{sub 3} samples doped with Eu{sub 2+} and Ce{sub 3+} have been studied after β-ray irradiation. At ambient conditions the photoluminescence spectra consisted of sharp line peaked of Eu{sub 2+} at 360 nm attributed to the f → f transition ({sup 6}P{sub 7/2}→{sup 8}S{sub 7/2}) could only be observed due to the energy transfer from Ce{sub 3+} to Eu{sub 2+}.
Authors:
;  [1] ; ;  [2]
  1. Centre for Crystal Growth, SSN College of Engineering, Kalavakkam, Tamilnadu-603110 (India)
  2. Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamilnadu - 603102 (India)
Publication Date:
OSTI Identifier:
22269210
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERIUM FLUORIDES; CERIUM IONS; DOPED MATERIALS; ENERGY TRANSFER; EUROPIUM FLUORIDES; EUROPIUM IONS; IRRADIATION; MAGNESIUM FLUORIDES; MONOCRYSTALS; PEROVSKITE; PHOTOLUMINESCENCE; POLYCRYSTALS; POTASSIUM FLUORIDES; POWDERS; SOLIDS; SPECTRA; STOCKBARGER METHOD; THERMOLUMINESCENCE; X-RAY DIFFRACTION