Room and low temperature luminescence properties of CaSO4:Dy,Tm codoped with Li
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Date
2009
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Abstract
Rare earths, especially Dy or Tm doped CaSO4 phosphors are actively studied. They have high sensitivity, a large dynamic range, thermal stability and ease of preparation. Nevertheless, they can be enhanced by inclusion of lithium and this study reports some effects of lithium co-dopant on the TL and radioluminescence (RL) emissions of two TL phosphors. Addition of Li as a co-dopant ion was made either during chemical preparation of the phosphors, or as a binder component mixed with the basic phosphors matrix during the process of pressing and sintering the TLD pellets.
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Keywords
Doping (additives) , Dysprosium , Light emission , Lithium , Luminescence , Phosphors , Sintering , Temperature , Thulium , Binder components , Chemical preparation , Co-dopants , Co-doped , Dynamic range , High sensitivity , Low-temperature luminescence , Radio-luminescence , Condensed matter physics