]Electrical conductivity measurements on gel grown KDP crystals added with some ammonium compounds |
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Authors: | T H Freeda C Mahadevan |
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Affiliation: | (1) Department of Physics, S.T. Hindu College, 629 002 Nagercoil, India |
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Abstract: | Pure and impurity added with NH4CI, NH4NO3, NH44H2PO4, (NH4)2CO3 and (NH4)2SO4] 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 28 to 140°C by the conventional
two-probe method. The present study shows that the conductivity in KDP crystals, for all the five dopants considered, increases
with the increase in impurity concentration and temperature. Activation energies were also determined and reported. |
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Keywords: | Impurity added KDP crystals gel method electrical conductivity activation energy |
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