Crystal growth and characterization of a semi-organic nonlinear optical (NLO) material: L-phenylalanine cadmium chloride

2015 ◽  
Vol 93 (11) ◽  
pp. 1296-1301 ◽  
Author(s):  
M.R. Jagadeesh ◽  
H.M. Suresh Kumar ◽  
R. Ananda Kumari
Keyword(s):  
Cadmium Chloride ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Visible Region ◽  
Dielectric Behavior ◽  
Solution Technique ◽  
Infrared Analysis ◽  
Cutoff Wavelength ◽  
Monoclinic Crystal ◽  
Second Harmonic Generation Efficiency

L-phenylalanine cadmium chloride (LPCC) single crystals were grown from aqueous solution using the slow evaporation solution technique. The grown crystals were analyzed through various characterization techniques. Structural study reveals that LPCC belongs to a monoclinic crystal system with the space group P1. The presences of various functional groups were identified by Fourier transform infrared analysis. Optical absorption study was carried out and complete transparency in the visible region was observed with a lower cutoff wavelength of 261 nm. The surface morphology was analyzed through scanning electron micrograph studies. LPCC is thermally stable up to 265 °C as determined by thermogravimetric – differential thermal analysis studies. Dielectric behavior as a function of frequency was examined. The mechanical behavior was studied by Vicker’s microhardness tester. To explore the nonlinear optical property, the Kurtz powder method was employed and second harmonic generation efficiency was determined.

Growth and characterization of efficient second-order nonlinear optical material: N-(2-chlorophenyl)-(1-propanamide)

2021 ◽  
pp. 2050001
Author(s):  
M. Saravanan
Keyword(s):  
Nonlinear Optical ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Visible Region ◽  
Incident Radiation ◽  
Monoclinic Crystal ◽  
Slow Cooling ◽  
Half Wave Voltage ◽  
Electro Optic ◽  
Photoluminescence Studies

The crystals N-(2-chlorophenyl)-(1-propanamide) (NCP) appropriate for nonlinear optical (NLO) and electro–optic appliances were grown full-fledged by the slow cooling method. The solubility and metastable zone width range of NCP specimen were studied. The specimen crystallizes in the monoclinic crystal system with noncentrosymmetric space group of P21. The crystal morphology study also elucidates supplementary excellence of the as-grown NCP crystal. The optical precision in the whole visible region was found to be superior for NLO claim. The crystallinity of the full-fledged crystal is determined by etching and HRXRD. Laser harm threshold and photoluminescence studies delegate the grown crystal comprises extremely less imperfections. The mechanical deeds of NCP sample at assorted temperatures were examined to decide the hardness solidity of the grown specimen. The piezoelectric behavior and the comparative second harmonic generation for assorted particle sizes of the material were also deliberate. The third-order nonlinear ocular possessions of NCP crystal specimen were determined by [Formula: see text]-scan method. The optical homogeneity of the solitary crystal was assessed using customized channel spectrum technique. The thermal structures of NCP solitary crystal have been studied using photopyroelectric method. The half-wave voltage of the full-fledged crystal was intended from the electro–optic experimentation. Photoconductivity nature of the grown crystal outlined consummate inducing dipoles due to strong incident radiation and further revealed the nonlinear deeds of the grown material.

scholarly journals Growth, structural and optical properties of novel nonlinear optical potassium phthalate di lithium borate (KPDLiB) single crystals

2020 ◽  
Vol 38 (2) ◽  
pp. 214-218
Author(s):  
K. Mohanraj ◽  
D. Balasubramanian ◽  
N. Jhansi
Keyword(s):  
Single Crystals ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Visible Region ◽  
Fluorescence Emission ◽  
Lithium Borate ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
X Ray ◽  
Evaporation Technique

AbstractNovel nonlinear optical semi-organic, potassium phthalate di lithium borate (KPDLiB) single crystals were successfully grown by the slow solvent evaporation technique. Good crystalline nature and an orthorhombic structure were confirmed by powder X-ray diffraction and single crystal X-ray diffraction studies. The functional groups of KPDLiB were identified using FT-IR spectrum recorded in the range of 4000 cm−1 to 450 cm−1. UV-Vis spectrum showed transmitting ability of the crystals in the entire visible region. The photoluminescence spectrum exhibited good fluorescence emission in a visible region at 384 nm, 416 nm and 578 nm. The second harmonic generation efficiency of the grown crystal was evaluated from Kurtz powder technique.

Growth and Characterization of (E)-1-(5-Chlorothiophene-2-Yl)-3-(4- Dimethylamino)Phenyl)Prop-2-En-1-One, Novel NLO Single Crystal

2019 ◽  
Vol 962 ◽  
pp. 3-9 ◽  
Author(s):  
C. Shruthi ◽  
V. Ravindrachary ◽  
K. Byrappa ◽  
B. Guruswamy ◽  
D. Jagadeesh Prasad ◽  
...  
Keyword(s):  
Second Harmonic ◽  
Condensation Reaction ◽  
Visible Region ◽  
Visible Spectrum ◽  
Monoclinic Crystal ◽  
Second Harmonic Generation Efficiency ◽  
Evaporation Technique ◽  
Ft Ir ◽  
Angle Method

A novel NLO compound (E)-1-(5-chlorothiophene-2-yl)-3-(4-dimethylamino) phenyl) prop-2-en-1-one has been synthesized by adopting claisen schmidt condensation reaction method and the single crystals are grown using slow solvent evaporation technique. The FT-IR spectrum confirms the various functional groups present in the compound. The crystal structure was studied by XRD method, which reveals that the compound crystallizes in Monoclinic crystal system with a space group P21/n and the corresponding lattice parameters are a = 7.595 (2) Å, b = 17.441 (4) Å, c = 10.917 (3) Å, α = 90o, β = 102.500 (12)o, γ = 90o. UV-Visible spectrum shows that the crystal is transparent in the entire visible region. Refractive index of the crystal was determined using Brewster’s angle method. Thermal stability of the material was determined from TG/DTA test. The Second harmonic generation efficiency of the crystal was estimated using NLO test and the efficiency was found to be 0.84 times that of UREA.

scholarly journals Investigation on Growth, Structural, Spectral, Optical, and Mechanical Properties of an Organic Nonlinear Optical Material: Morpholinium Hydrogen Tartrate

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
R. Renugadevi ◽  
R. Kesavasamy
Keyword(s):  
Nonlinear Optical ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Spectral Studies ◽  
Solution Technique ◽  
Molecular Formula ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
Optical And Mechanical Properties ◽  
Dta Studies

Organic nonlinear optical crystal morpholinium hydrogen tartrate (MHT), with molecular formula [C8H15NO7], has been grown by slow evaporation solution technique. Single crystal X-ray diffraction study confirms that MHT crystallizes in orthorhombic system with noncentrosymmetric space group P212121. FTIR spectrum was recorded to identify the various functional groups of MHT. The various kinds of protons and carbons of MHT have been identified using1H and13C NMR spectral analyses. The range of optical absorption was ascertained by recording UV-Vis-NIR spectral studies. The TG/DTA studies revealed that the grown crystal is thermally stable up to 159.26°C. The mechanical property of the grown crystal was studied using Vickers microhardness studies. The relative second harmonic generation efficiency of MHT was determined using Kurtz and Perry powder technique; it was observed to be greater than that of KDP crystal.

scholarly journals Effect of Metal Dopant on Ninhydrin—Organic Nonlinear Optical Single Crystals

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
R. S. Sreenivasan ◽  
N. Kanagathara ◽  
G. Ezhamani ◽  
N. G. Renganathan ◽  
G. Anbalagan
Keyword(s):  
Single Crystal ◽  
Single Crystals ◽  
Second Harmonic ◽  
Visible Region ◽  
Lattice Parameters ◽  
Cutoff Wavelength ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
Second Harmonic Generation Efficiency ◽  
X Ray

In the present work, metal (Cu2+)-substituted ninhydrin single crystals were grown by slow evaporation method. The grown crystals have been subjected to single crystal XRD, powder X-ray diffraction, FTIR, dielectric and SHG studies. Single crystal X-ray diffraction analysis reveals that the compound crystallizes in monoclinic system with noncentrosymmetric space group P21 with lattice parametersa=11.28 Å,b=5.98 Å,c=5.71 Å,α=90∘,β=98.57,γ=90∘, andV=381 (Å)3, which agrees very well with the reported value. The sharp and strong peaks in the powder X-ray diffraction pattern confirm the good crystallinity of the grown crystals. The presence of dopants marginally altered the lattice parameters without affecting the basic structure of the crystal. The UV-Vis transmittance spectrum shows that the crystal has a good optical transmittance in the entire visible region with lower cutoff wavelength 314 nm. The vibrational frequencies of various functional groups in the crystals have been derived from FT-IR analysis. Based on the shifts in the vibrations, the presence of copper in the lattice of the grown crystal is clearly established from the pure ninhydrin crystals. Both dielectric constant and dielectric loss decrease with the increase in frequency. The second harmonic generation efficiency was measured by employing powder Kurtz method.

OPTICAL, THERMAL AND MECHANICAL STUDIES ON NONLINEAR OPTICAL MATERIAL DIGLYCINE BARIUM CHLORIDE MONOHYDRATE (DGBCM) SINGLE CRYSTAL

2013 ◽  
Vol 22 (04) ◽  
pp. 1350043 ◽  
Author(s):  
G. MARUDHU ◽  
S. KRISHNAN ◽  
T. THILAK ◽  
P. SAMUEL ◽  
G. VINITHA ◽  
...  
Keyword(s):  
Single Crystals ◽  
Nonlinear Optical ◽  
Fluorescence Spectra ◽  
Second Harmonic ◽  
Barium Chloride ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
Growth Technique ◽  
Chloride Monohydrate ◽  
Solution Growth Technique

The nonlinear optical single crystals of diglycine barium chloride monohydrate were grown by slow evaporation solution growth technique from the mixture of an aqueous solution of glycine and barium chloride in the ratio 2:1 at room temperature. The grown crystals were characterized by various techniques such as single crystals X-ray diffraction, FTIR, UV-Vis-NIR spectra, Vickers hardness studies, thermogravimetric analysis, and fluorescence spectra. Its second harmonic generation efficiency was measured by Kurtz and Perry powder technique using Nd :YAG laser.

Mechanical, Electrical, Linear and Nonlinear optical behavior of gamma irradiated thiourea doped lithium sulfate single crystals

2020 ◽  
Author(s):  
Dileep M S ◽  
Suresh Kumar H.M. ◽  
Sindhu Tilak
Keyword(s):  
Energy Gap ◽  
Second Harmonic ◽  
Visible Region ◽  
Irradiation Effect ◽  
Lithium Sulfate ◽  
Monoclinic Crystal ◽  
Cell Parameters ◽  
Evaporation Technique ◽  
Gamma Radiations ◽  
Gamma Irradiated

The thiourea doped lithium sulfate single crystal was grown by solution growth slow evaporation technique. The unit cell parameters of the grown crystal determined by X-ray diffraction studies indicated that the crystal belongs to a monoclinic crystal system with noncentrosymmetric space group P2. UV-visible spectral study signified that the crystal possesses an energy gap of 4.54 eV with 68% transparency in the visible region. The grown crystals were irradiated by Co-60 gamma radiations with different doses of 10 kGy, 30 kGy & 50 kGy and studied irradiation effect on powder XRD, dielectric properties, mechanical hardness, linear transmittance and second harmonic generation of the crystal. It is observed that the crystallite size, energy gap and transparency are decreased; whereas, the dielectric constant, AC conductivity, microhardness and SHG efficiency are increased upon an increase in radiation dose.

scholarly journals Synthesis, Growth and Characterization of New Promising Organic Non-Linear Optical Crystal: L-Alanine Alaninium Nitrate

2019 ◽  
Vol 31 (8) ◽  
pp. 1661-1666
Author(s):  
G. Krishnamoorthi ◽  
R. Uvarani
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Visible Region ◽  
Potassium Dihydrogen Phosphate ◽  
Dihydrogen Phosphate ◽  
Dielectric Study ◽  
Second Harmonic Generation Efficiency ◽  
Cell Parameters ◽  
Induced Defects

A relative study on pure L-alanine alaninium nitrate (LAAN) single crystals and doped with lanthanum oxide, urea and glycine were developed from fluid solution by slow evaporation strategy at room temperature. X-ray diffraction result reveals that LAAN crystallites with system with space bunch P21 and cell parameters a = 7.836 Å, b = 5.428 Å, c = 12.809 Å and β = 94.25°. These parameters were marginally changes for doped crystals compared to pure LAAN crystal. The UV results recommend that the great transmission property of the doped LAAN crystal within the whole visible region guarantees its reasonableness for second harmonic generation applications. The presence of dopants within the LAAN crystal was further affirmed through ICP studies. The functional groups were analyzed through Fourier change infrared spectra investigation. The microhardness and dielectric study at 100 Hz was found to be broadly higher than that of pristine LAAN. The AC conductivity was found to extend after doping due to the induced defects in crystal lattice. The grown crystals were also subjected to second harmonic generation efficiency tests and it was found to be La2O3 doped LAAN crystal is 2.8 times greater than that of potassium dihydrogen phosphate (KDP).

Studies on growth and characterization of nonlinear optical L-tartaric acid–nicotinamide single crystal

2016 ◽  
Vol 25 (03) ◽  
pp. 1650037 ◽  
Author(s):  
A. Alexandar ◽  
P. Surendran ◽  
S. Sakthy Priya ◽  
A. Lakshmanan ◽  
P. Rameshkumar
Keyword(s):  
Single Crystal ◽  
Tartaric Acid ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Band Gap Energy ◽  
Solution Technique ◽  
Ambient Conditions ◽  
X Ray Diffraction ◽  
Defect States ◽  
Plasma Energy

Organic nonlinear optical (NLO) single crystal of L-tartaric acid–nicotinamide (LTN) has been grown by slow evaporation solution technique at a constant temperature of 40[Formula: see text]C. The grown crystals were subjected to various characterization techniques in order to examine their suitability for various applications. Powder X-ray diffraction (PXRD) analysis revealed that the compound is formed without any impurities. Functional groups and formation of the title compound were confirmed using FTIR analysis. Optical behavior of the material was examined using UV–Vis NIR spectrum analysis and the lower cut-off wavelength and optical band gap energy were calculated. Microhardness, dielectric and piezoelectric studies have been carried out at ambient conditions. Electronic properties such as valence electron plasma energy, Penn gap, Fermi energy and electronic polarizability were calculated by Clausius–Mossotti relation. Photoluminescence analysis was carried out to study the luminescence nature of the crystal and its defect states. In addition photoconductivity, etching studies and powder Kurtz and Perry second harmonic generation (SHG) test were carried out.

INVESTIGATION ON THE PHYSICOCHEMICAL PROPERTIES OF NONLINEAR OPTICAL SINGLE CRYSTAL: 2-NAPHTHALENOL

2009 ◽  
Vol 23 (09) ◽  
pp. 1221-1227
Author(s):  
K. SELVARAJU ◽  
K. KIRUBAVATHI ◽  
S. KUMARARAMAN
Keyword(s):  
Single Crystal ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Potassium Dihydrogen Phosphate ◽  
Wavelength Region ◽  
Dihydrogen Phosphate ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
Growth Technique ◽  
Potassium Dihydrogen

Single crystals of 2-Naphthalenol (2N), new organic nonlinear optical (NLO) material, have been grown by slow evaporation solution growth technique at room temperature. The crystal system has been confirmed from the single crystal X-ray diffraction analysis. The functional groups were identified using FTIR spectroscopy. UV-vis-NIR spectrum showed absence of absorption in the wavelength region 400–1400 nm. The second harmonic generation efficiency is two times higher than that of standard potassium dihydrogen phosphate (KDP).

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