Volume-2 , Issue-3 , Oct 2014, ISSN 2348-3423 (Online) Go Back

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  Dependence on the Lyoluminescence of Divalent Impurity Doped Sodium chloride on the pH of the Solution

  Bhawna Chourasia and Mithelesh Mittal

  Research Paper | Isroset-Journal (IJSRPAS)

  Vol.2 , Issue.3 , pp.1-4, May-2014

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  Abstract
  The present paper report the Dependence on the Lyoluminescence of Divalent impurity Doped Sodium chloride on the pH of the Solution. Luminescence is light that accompanies the transition from an electronically excited atom or molecule to a lower energy state. Lyoluminescence(LL) is the phenomenon of light emission ,when certain substance irradiated with ionizing radiation are dissolved in a suitable solvent .When Divalent impurity doped NaCl crystals are dissolved in water electron are released from F-centers and the formation of hydrated electron takes place. The subsequent recombination of hydrated electrons with its counterpart V2 center at the water- solid interface gives rise to luminescence. The LL intensity increases with increasing pH of the solution, and then it decreases with increasing pH of the solution. The LL intensity is optimum for a particular pH (6-7) of the solution. It has been shown that the maximum LL intensity is observed over the pH range in which the stability of the hydrated electron is optimum. The use of LL are in dosimetry devices.

  Key-Words / Index Term
  Lyoluminescence, Colour Centers,Crystals, Alkalihalide

  References
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  Citation
  Bhawna Chourasia and Mithelesh Mittal, "Dependence on the Lyoluminescence of Divalent Impurity Doped Sodium chloride on the pH of the Solution," International Journal of Scientific Research in Physics and Applied Sciences, Vol.2, Issue.3, pp.1-4, 2014