Download (4Mb) - Etheses - Saurashtra University

of NLO materials in rapidly developing field of science and technology, recent
advances and future challenges along with necessary literature survey are
included. The significance of the present study is also covered.
Chapter II In this chapter a brief survey of different crystal growth techniques,
crystal growth theories and solution growth techniques is given. The author has
employed the slow solvent evaporation technique for the growth of pure and 0.3
wt %, 0.4 wt % and 0.5 wt %. L-histidine, L-threonine and DL-methionine doped
KDP crystals. The study of solubility curves for pure KDP solution and various
amounts of amino acids added solutions are presented. The kinetics of
nucleation is also discussed and it has been observed that the induction period
as well as nucleation parameters are higher for doped crystals in comparison to
the pure KDP crystals.
Chapter III The author has employed CHN analysis, paper chromatography and
FT-IR spectroscopy studies of pure and L-histidine, L-threonine and DL-
methionine (amino acids) doped KDP crystals are reported, which confirms the
successful achievement of doping in KDP .In CHN analysis presence of C and N
are detected in all doped samples and not in the pure sample, the proportion of C
and N also increases with increase in doping level. In the paper chromatograph
of doped samples, characteristically, purple spot is observed. From FTIR
analysis, the functional groups and their interactions in the crystal are confirmed