Growth and Analysis of NSH and KMNSH Crystals by Slow Evaporation Technique

Nickel sulphate hexahydrate (NSH) and potassium magnesium nickel sulphate hexahydrate (KMNSH) single crystals were grown by slow evaporation method. The grown NSH crystal was found to crystallize in tetragonal system with space group P41 21 2 and KMNSH in monoclinic system with space group P121/c. The optical band gap energies of the grown crystals using UV-Vis spectral results for the doped and undoped NSH crystals were calculated. The presence of various functional groups in the crystal was identified by FTIR analysis. The thermal behaviour of the grown crystal has been studied by TGA/DTA analysis.

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Growth, Optical and Microhardness Studies of 2-Aminothiazole- 3, 5-Dinitrobenzoic Acid Complex

Frontiers in Advanced Materials Research ◽

10.34256/famr1918 ◽

2019 ◽

Vol 1 (1) ◽

pp. 42-45

Author(s):

Tamiloli Devendhiran ◽

Keerthika Kumarasamy ◽

Mei–Ching Lin

Keyword(s):

Room Temperature ◽

Grown Crystal ◽

Optical Transmittance ◽

Dielectric Measurements ◽

Slow Evaporation ◽

X Ray Diffraction ◽

Acid Complex ◽

X Ray ◽

Slow Evaporation Technique ◽

Evaporation Technique

Single crystals of 2-Aminothiazole 3,5-Dinitrobenzoic acid has been synthesized and good quality optical crystals were grown by slow evaporation technique at room temperature. The crystallinity nature of the grown crystal was confirmed from X-ray diffraction technique. An optical transmittance study was also carried out by UV – Vis spectra. FTIR spectra confirm the presence of functional groups in the grown crystal. The dielectric measurements were carried out in the range of 50Hz to 2MHz. The dielectric constant was seen to increase exponentially at lower frequencies. The microhardness studies were carried out using Vickers hardness indenter. Photoluminescence study shows that maximum emission occurs at 435nm.

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An Optical Overview of Poly[-L-alanine--nitrato-sodium(I)] Crystals

The Scientific World JOURNAL ◽

10.1100/2012/620189 ◽

2012 ◽

Vol 2012 ◽

pp. 1-7

Author(s):

E. Gallegos-Loya ◽

E. Orrantia-Borunda ◽

A. Duarte-Moller

Keyword(s):

Sodium Nitrate ◽

Grown Crystal ◽

Second Harmonic ◽

Vibrational Modes ◽

Slow Evaporation ◽

X Ray Diffraction ◽

X Ray ◽

Slow Evaporation Technique ◽

Evaporation Technique ◽

Xrd Studies

Single crystals of the semiorganic materials, L-alanine sodium nitrate (LASN) and D-alanine sodium nitrate (DASN), were grown from an aqueous solution by slow-evaporation technique. X-ray diffraction (XRD) studies were carried for the doped grown crystals. The absorption of these grown crystals was analyzed using UV-Vis-NIR studies, and it was found that these crystals possess minimum absorption from 200 to 1100 nm. An infrared (FTIR) spectrum of single crystal has been measured in the 4000–400 cm-1range. The assignment of the observed vibrational modes to corresponding symmetry type has been performed. A thermogravimetric study was carried out to determine the thermal properties of the grown crystal. The efficiency of second harmonic generation was obtained by a variant of the Kurtz-Perry method.

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Spectral Investigation on the Growth and Characterization of NLO Crystals of Thiourea Succinic Acid Single Crystal.

International Journal of Science Technology and Humanities ◽

10.26524/ijsth58 ◽

2015 ◽

Vol 2 (2) ◽

pp. 70-73

Author(s):

Kannan.P ◽

Thambidurai.S ◽

Suresh.N

Keyword(s):

Single Crystal ◽

Succinic Acid ◽

Slow Evaporation Technique ◽

Absorption Studies ◽

Dta Analysis ◽

Evaporation Technique ◽

Ft Ir ◽

Ir Spectroscopic ◽

Thermal Stability Of

Growth of optically transparent single crystals of thiourea succinic acid (TUSA) was grown successfully from aqueous solution by slow evaporation technique. The crystal structure was elucidated using the single crystal XRD. The various functional groups and the modes of vibrations were identified by FT-IR spectroscopic analysis. The optical absorption studies indicate that the optical transparency window is quite wide making its suitable for NLO applications. Thermal stability of the crown crystal carried out by TGA-DTA analysis.

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Synthesis, Growth and Characterization of Organic Nonlinear Optical L-Asparagine L-Tartrate Single Crystals

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.584.13 ◽

2012 ◽

Vol 584 ◽

pp. 13-17 ◽

Cited By ~ 1

Author(s):

G. Peramaiyan ◽

P. Pandi ◽

B.M. Sornamurthy ◽

R. Mohan Kumar

Keyword(s):

Nonlinear Optical ◽

Grown Crystal ◽

Second Harmonic ◽

Bulk Single Crystal ◽

X Ray Diffraction ◽

Ftir Studies ◽

Slow Evaporation Technique ◽

Evaporation Technique ◽

Generation Test

L-asparagine L-tartrate (LAT), an organic compound has been synthesized from aqueous solution and bulk single crystal has been grown by slow evaporation technique. Powder X-ray diffraction studies confirmed the monoclinic structure of the grown LAT crystal. The presence of functional groups of the grown crystal was identified by FTIR studies. Linear optical property of the grown crystal was studied by UV-Vis spectral analysis. Microhardness studies reveal that the crystal possesses relatively higher hardness compared to other organic nonlinear optical crystals. Dielectric response of the L-asparagine L-tartrate crystal was analyzed for different frequencies at various temperatures. Kurtz-Perry powder second harmonic generation test confirmed the nonlinear optical properties of the as-grown LAT crystal.

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