SYNTHESIS, CRYSTAL GROWTH AND CHARACTERIZATION OF BIS DL-VALINE PICRATE SINGLE CRYSTAL FOR SECOND-ORDER NONLINEAR OPTICAL APPLICATIONS

2013 ◽  
Vol 01 (02) ◽  
pp. 1350004
Author(s):  
A. SILAMBARASAN ◽  
M. KRISHNA KUMAR ◽  
S. SUDHAHAR ◽  
A. THIRUNAVUKKARASU ◽  
R. MOHAN KUMAR ◽  
...  
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Band Gap Energy ◽  
X Ray Diffraction ◽  
Monoclinic Crystal ◽  
Electronic Band ◽  
X Ray ◽  
Ftir Spectral Analysis ◽  
Growth Method

An organic compound Bis DL-Valine picrate (BDLVP) was synthesized successfully and single crystal was grown by slow evaporation solution growth method. The presence of functional groups in the compound was identified by FTIR spectral analysis. Single crystal X-ray diffraction study revealed that the grown crystal belongs to P21/n space group of monoclinic crystal system. Powder X-ray diffraction pattern was recorded to know the crystalline perfection of the grown crystal. The reaction mechanism, thermal decomposition stages and thermal stability of the grown crystal were studied by using TG/DTA analysis. From the UV-visible spectral study, the electronic band gap energy (Eg) of the grown crystal was found to be 2.43 eV. The second harmonic generation (SHG) efficiency of grown crystal was found to be 1.3 times higher than KDP crystal by using Kurtz powder SHG technique. The microhardness property of the grown crystal was examined by Vicker's microhardness test.

STUDIES ON THE GROWTH, SPECTRAL, OPTICAL AND THERMAL PROPERTIES OF 4-NITROANILINE PICRATE SINGLE CRYSTALS

2013 ◽  
Vol 27 (32) ◽  
pp. 1350235 ◽  
Author(s):  
P. K. SIVAKUMAR ◽  
M. KRISHNA KUMAR ◽  
R. MOHAN KUMAR ◽  
R. KANAGADURAI
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Threshold Value ◽  
Laser Damage Threshold ◽  
X Ray Diffraction ◽  
Plasma Energy ◽  
Ftir Spectral Analysis ◽  
Growth Method

In this paper, an organic 4-nitroaniline picrate (4NP) single crystal was grown by solution growth method. Single crystal X-ray diffraction study revealed that grown crystal belongs to orthorhombic system with Pbcn space group. The solid state constants such as plasma energy, Penn gap, Fermi energy and polarizability of 4NP crystal were determined theoretically. The functional groups of the grown crystals were confirmed qualitatively from FTIR spectral analysis. The thermal decomposition and melting point of the crystal were determined from thermogravimetric analysis. The optical absorption and cut-off wavelength of the crystal were determined from UV-visible study. The second harmonic generation (SHG) efficiency of the grown crystal was measured by Kurtz–Perry SHG test using Nd : YAG laser. The laser damage threshold value of the grown crystal was estimated by multi-shot method using 1064 nm laser.

scholarly journals Studies on the growth and characterization of L-cysteine hydrogen fluoride single crystal

2019 ◽  
Vol 37 (3) ◽  
pp. 304-309
Author(s):  
Azeezaa Varsha Mohammed ◽  
Suresh Sagadevan
Keyword(s):  
Single Crystal ◽  
Hydrogen Fluoride ◽  
Grown Crystal ◽  
Optical Band Gap ◽  
Second Harmonic ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Ft Ir

AbstractL-cysteine hydrogen fluoride (LCHF) single crystals were grown from aqueous solution. Single crystal X-ray diffraction, FT-IR, UV-Vis-NIR, and TG-DTA were used to test the grown crystals. The specimen dielectric and mechanical behaviors were also studied. Powder X-ray diffraction of the grown crystal was recorded and indexed. The optical properties of the LCHF crystal were determined using UV-Vis spectroscopy. It was found that the optical band gap of LCHF was 4.8 eV. The crystal functional groups were identified using FT-IR. Second harmonic generation (SHG) efficiency of the LCHF was three times higher than that of KDP. The dielectric constant, dielectric loss and AC conductivity were measured at different frequencies and temperatures.

scholarly journals Crystal Growth and Physico-Chemical Characterization of Semi-Organic [C4H12N2] ZnCl4. H2O Single Crystal for Laser Applications

2021 ◽  
Author(s):  
Karuppasamy Pichan ◽  
T. Kamalesh ◽  
M. Senthilpandian ◽  
P. Ramasamy
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Chemical Characterization ◽  
Band Gap Energy ◽  
Optical Quality ◽  
X Ray Diffraction ◽  
Laser Applications ◽  
X Ray ◽  
Conventional Solution ◽  
Grown Single Crystal

Abstract Optical high quality semi-organic piperazinium tetrachlorozincate monohydrate, [C4H12N2] ZnCl4. H2O (PTCZ) single crystals were grown by conventional solution method. The structure of grown crystal was confirmed by the single crystal X-ray diffraction (SXRD) analysis. The material phase purities and its various (hkl) planes have been confirmed by the powder X-ray diffraction (PXRD) analysis at room temperature. The different functional groups were confirmed by the Fourier-transform infrared (FTIR) spectroscopy. The optical quality of the PTCZ single crystal and band gap energy have been identified by the UV-Vis NIR spectral analysis and also calculated refractive index of the material. The thermal stability of the PTCZ single crystal was investigated by TG-DTA. The hardness related properties were analyzed by microhardness tester. The dielectric properties have been measured on the grown single crystal and the electronic polarizability value has been calculated with various theoretical approach. The etching process was carried out on the grown crystal to finding the dislocation density. The crystal atomic perfection has been investigated by the high resolution X-ray diffraction (HRXRD) or Rocking curve (RC) analysis. The Z-scan measurement has been carried out to finding third-order optical susceptibility (χ(3)) of the grown single crystal using solid state laser (640 nm).

Synthesis, Growth and Optical Studies of Mn: α-LiIO3 Single Crystal

2012 ◽  
Vol 584 ◽  
pp. 3-7 ◽  
Author(s):  
R. Ashok Kumar ◽  
D. Rajan Babu ◽  
R. Ezhil Vizhi ◽  
N. Vijayan ◽  
G. Bhagavannarayana
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Visible Region ◽  
X Ray Diffraction ◽  
X Ray ◽  
Optical Instruments ◽  
Optical Applications ◽  
Nonlinear Optical Applications ◽  
Mn Doped

Manganese doped alpha-lithium iodate have been synthesized and single crystals have been grown for nonlinear optical applications. The grown crystal has been subjected to single crystal X-ray diffraction to confirm the structure. The crystalline perfection was assessed by high-resolution X- ray diffractometer (HRXRD). Second harmonic generation (SHG) efficiency was found to be 71 times than that of KDP. The UV–Vis-NIR spectroscopic study revealed that the grown crystal has good optical transparency in the visible region clearly indicates that Mn doped α-LiIO3 crystals can be used as window material in optical instruments. Presence of dopant was confirmed by energy-dispersive spectrometry.

Synthesis, Structure and Magnetism of ErCoIn5

2004 ◽  
Vol 848 ◽  
Author(s):  
Evan Lyle Thomas ◽  
Erin E. Erickson ◽  
Monica Moldovan ◽  
David P. Young ◽  
Julia Y. Chan
Keyword(s):  
Magnetic Properties ◽  
Electrical Resistivity ◽  
Magnetic Susceptibility ◽  
Single Crystal ◽  
Experimental Results ◽  
Flux Growth ◽  
X Ray Diffraction ◽  
Metallic Behavior ◽  
X Ray ◽  
Growth Method

AbstractA new member of the LnMIn5 family, ErCoIn5, has been synthesized by a flux-growth method. The structure of ErCoIn5 was determined by single crystal X-ray diffraction. It crystallizes in the tetragonal space group P4/mmm, Z = 1, with lattice parameters a = 4.5400(4) and c = 7.3970(7) Å, and V = 152.46(2) Å3. Electrical resistivity data show metallic behavior. Magnetic susceptibility measurements show this compound to be antiferromagnetic with TN = 5.1 K. We compare these experimental results with those of LaCoIn5 in an effort to better understand the effect of the structural trends observed on the transport and magnetic properties.

Synthesis, growth, structure and characterization of molybdenum zinc thiourea complex crystals

2015 ◽  
Vol 71 (3) ◽  
pp. 285-292 ◽  
Author(s):  
M. Rajasekar ◽  
K. Muthu ◽  
A. Aditya Prasad ◽  
R. Agilandeshwari ◽  
SP Meenakshisundaram
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Intermolecular Interactions ◽  
Crystal Packing ◽  
Second Harmonic ◽  
Morphological Changes ◽  
Strong Interactions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cell Parameters

Single crystals of molybdenum-incorporated tris(thiourea)zinc(II) sulfate (MoZTS) are grown by the slow evaporation solution growth technique. Crystal composition as determined by single-crystal X-ray diffraction analysis reveals that it belongs to the orthorhombic system with space groupPca21and cell parametersa= 11.153 (2),b= 7.7691 (14),c= 15.408 (3) Å,V= 1335.14 (4) Å3andZ= 4. The surface morphological changes are studied by scanning electron microscopy. The vibrational patterns in FT–IR are used to identify the functional group and TGA/DTA (thermogravimetric analysis/differential thermal analysis) indicates the stability of the material. The structure and the crystallinity of the material were confirmed by powder X-ray diffraction analysis and the simulated X-ray diffraction (XRD) closely matches the experimental one with varied intensity patterns. The band gap energy is estimated using diffuse reflectance data by the application of the Kubelka–Munk algorithm. The relative second harmonic generation (SHG) efficiency measurements reveal that MoZTS has an efficiency comparable to that of tris(thiourea)zinc(II) sulfate (ZTS). Hirshfeld surfaces were derived using single-crystal X-ray diffraction data. Investigation of the intermolecular interactions and crystal packingviaHirshfeld surface analysis reveal that the close contacts are associated with strong interactions. Intermolecular interactions as revealed by the fingerprint plot and close packing could be the possible reasons for facile charge transfer leading to SHG activity.

scholarly journals Studies on Structural, Spectral, and Optical Properties of Organic Nonlinear Optical Single Crystal: 2-Amino-4,6-dimethylpyrimidinium p-Hydroxybenzoate

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
S. Sudhahar ◽  
M. Krishna Kumar ◽  
A. Silambarasan ◽  
R. Muralidharan ◽  
R. Mohan Kumar
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Visible Spectrum ◽  
Damage Threshold ◽  
Surface Damage ◽  
Second Harmonic Generation Efficiency ◽  
Cell Parameters ◽  
Infrared Spectral ◽  
Growth Method

2-Amino-4,6-dimethylpyrimidinium p-hydroxybenzoate (ADPHB), a novel organic material, was synthesized, and crystals were grown by slow evaporation solution growth method. The cell parameters and crystalline perfection of the grown crystal were studied by single crystal and powder X-ray diffraction analyses. The presence of various functional groups of the grown crystal was confirmed using Fourier Transform infrared spectral analysis. UV-Visible spectrum shows that ADPHB crystals have high transmittance in the range 305–900 nm. The refractive index and transient photoluminescence properties of the grown crystal were analyzed. The laser induced surface damage threshold, optical birefringence, and second harmonic generation efficiency of the grown crystal were studied.

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.

scholarly journals Synthesis, Crystal Growth, Structure, Crystalline Perfection, Thermal, Linear and Nonlinear Optical Investigations on 2-Amino-5-Nitropyridine 4-Chlorobenzoic Acid (1:1): A Novel Organic Single Crystal for NLO and Optical Limiting Optical Applications

2021 ◽  
Author(s):  
Sivasubramani Vediyappan ◽  
Arumugam Raja ◽  
Ro Mu Jauhar ◽  
Ramachandran Kasthuri ◽  
Vishwanathan Vijayan ◽  
...  
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Single Crystals ◽  
Nonlinear Optical ◽  
Grown Crystal ◽  
Solid State Laser ◽  
X Ray Diffraction ◽  
Chlorobenzoic Acid ◽  
X Ray ◽  
532 Nm

Abstract 2-amino-5-nitropyridine 4-chlorobenzoic acid (1:1) (2A5NP4CBA), a potentially useful organic adduct compound has been synthesized and grown as optically transparent single crystals by conventional slow evaporation solution technique (SEST) for the first time in the literature. The formation of the new crystalline material was confirmed by the single-crystal X-ray diffraction (SXRD) analysis and the crystal structure of the grown crystal was found to be monoclinic. Fourier transform infrared (FTIR) spectrum has been recorded by the KBr pellet technique to determine the various vibrational functional groups in the title material. The powder X-ray diffraction (PXRD) and high-resolution X-ray diffraction (HRXRD) analyses have been carried out and the obtained results reveal that the grown crystal has a single-phase and is free from structural grain boundaries. The obtained less value (32 arc-s) of full width at half maximum (FWHM) for (001) plane indicates the excellent crystalline quality of the title 2A5NP4CBA single crystal. The linear optical properties were evaluated by the UV-vis-NIR absorption and transmittance analyses and the obtained results reveal that the grown crystal possesses more than 70% of optical transmittance window with the cut-off edge at 419 nm. The thermal analysis discloses that the grown crystal possesses good thermal stability of about 187°C. To determine the appropriateness of the grown crystal for the high-power laser application, laser damage threshold (LDT) analysis has been carried out by Nd: YAG laser of a wavelength of 1064 nm. The third-order nonlinear optical coefficients such as nonlinear absorption (β), nonlinear refraction (n 2 ) and nonlinear susceptibility (χ (3) ) have been evaluated by utilizing the single beam Z-scan technique using a solid-state laser of wavelength 532 nm. The calculated ꭓ (3) value is found to be reasonably good compared to other organic single crystals which are reported in the literature. The optical limiting (OL) behavior of the title crystal was evaluated using a solid-state laser at 532 nm and the limiting threshold was found to be 7.8 mW/cm 2 .

Nd3+ Doped LiCaAIF6 Single Crystal for Scintillator Application

2012 ◽  
Vol 508 ◽  
pp. 224-229 ◽  
Author(s):  
Takayuki Yanagida ◽  
Yoshisuke Futami ◽  
Noriaki Kawaguchi ◽  
Jan Pejchal ◽  
Yutaka Fujimoto ◽  
...  
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Luminescence Spectrum ◽  
Single Phase ◽  
Grown Crystal ◽  
Light Yield ◽  
Transmittance Spectrum ◽  
X Ray Diffraction ◽  
X Ray ◽  
The Absolute

ααΑαNd3+ 0.5% Doped Single Crystal LiCaAlF6 Scintillator Was Grown by the Micro-Pulling down (µ-PD) Method. Powder X-Ray Diffraction Analysis Was Done and the Grown Crystal Was a Single Phase LiCaAlF6. it Was Cut and Polished to the Physical Dimension of 1 × 2 × 7 mm3. in Transmittance Spectrum, Nd3+ 5d-4f Absorption Observed at 175 Nm and the Transmittance Became 80% at Wavelength Longer than 180 Nm. Excited by 160 Nm, Nd3+ 5d-4f Emission Appeared at 180 Nm. X-Ray Induced Radio-Luminescence Spectrum Showed the Similar Feature with the Photoluminescence One. when Coupled with PMT and Irradiated by 241Am α-Ray, the Absolute Light Yield Resulted 100 Ph/5.5 Mev α.

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