GROWTH AND STUDIES OF PURE AND DL-MALIC ACID DOPED POTASSIUM DIHYDROGEN PHOSPHATE SINGLE CRYSTALS
S. Hemina
Department of Physics, Holy Cross College, Nagercoil -629004, Tamil Nadu, India
Fernando Loretta
Department of Physics, Holy Cross College, Nagercoil -629004, Tamil Nadu, India
Receiving Date:
2016-01-13
Acceptance Date:
2016-02-05
Publication Date:
2016-03-01
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Abstract
Optically good quality single crystals of pure and Dl-malic acid (DLM) doped Potassium
dihydrogen phosphate (KDP) were grown from aqueous solution employing slow evaporation technique.
The crystallinity and cell parameters of the grown pure and DLM doped KDP crystals was characterized
by powder X-ray diffraction analysis. The mechanical strength of the grown crystals were analyzed by
Vickers microhardness test. The enhancement in transmittance of the grown KDP crystal with addition of
DLM was determined by UV-Visible spectral analysis. The various investigations indicate changes in
structural,mechanical and optical properties of the KDP crystal due to the incorporation of DLM into the
KDP crystal lattice.
Keywords:
crystal growth , NLO materials, doping , characterization
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