Studies of Structural, Optical and Electrical Properties of Pure and l-ornithine Monohydrochloride Doped KDP Crystals

H. Bhuva¹ , K.V. Vadhel² , M.J. Joshi³ , H.O. Jethva⁴

Section:Research Paper, Product Type: Journal-Paper
Vol.10 , Issue.3 , pp.1-14, Jun-2022

Online published on Jun 30, 2022

Copyright © H. Bhuva, K.V. Vadhel, M.J. Joshi, H.O. Jethva . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
In the current study, author examines and reports the effect of dopant l-ornithine monohydrochloride (LOMHC) on structural, optical and electrical properties of potassium dihydrogen phosphate (KDP) crystal. The slow solvent evaporation technique is used to grow the crystals. Good grade, transparent, and rectangular crystals are achieved after approximately 4 weeks. The grown crystals are characterized by powder X, SHG, UV-Vis, impedance, modulus, dielectric and conductivity analysis. The powder X analysis shows single phase nature of the doped crystals with increase in crystallite size and lattice strain. The doped KDP crystals show NLO behavior with reduction in SHG efficiency. The UV-Vis analysis shows reduction in transmittance % and band gap energy of doped KDP crystals. Complex impedance and modulus analysis show the dominancy in polarization mechanism in all the samples due to bulk effect arising in the grains. The scaling behavior of modulus demonstrates the reliance of relaxation dynamics on doped LOMHC concentration. The dielectric behavior of pure and LOMHC doped KDP shows normal behavior. The ac conductivity obeys the Jonscher’s power law and ideal long-range pathways and diffusion limited hopping process in pure and LOMHC doped KDP crystals.

Key-Words / Index Term :
KDP, Powder XRD, SHG, UV-Vis, electrical analysis

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