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Bulletin of Materials Science

, Volume 24, Issue 5, pp 511–514 | Cite as

Electrical conductivity measurements on gel grown KDP crystals added with urea and thiourea

  • M. Priya
  • C. M. Padma
  • T. H. Freeda
  • C. Mahadevan
  • C. Balasingh
Article

Abstract

Pure and impurity added (with urea and thiourea) KDP single crystals were grown by the gel method using silica gels. Electrical conductivity measurements were carried out along both the unique axis and perpendicular directions at various temperatures ranging from 30 to 140‡ C by the conventional two-probe method. The present study shows that the conductivity in KDP crystals, for both the impurities considered, increases with the increase in impurity concentration and temperature. Activation energies were also determined and reported.

Keywords

Impurity added KDP crystals gel method electrical conductivity activation energy 

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Copyright information

© Indian Academy of Sciences 2001

Authors and Affiliations

  • M. Priya
    • 1
    • 2
  • C. M. Padma
    • 1
    • 2
  • T. H. Freeda
    • 1
  • C. Mahadevan
    • 1
  • C. Balasingh
    • 1
    • 2
  1. 1.Department of PhysicsS.T. Hindu CollegeNagercoilIndia
  2. 2.Scott Christian CollegeNagercoilIndia

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