Growth and Characterization of a Nonlinear Optical Single Crystal: Bis(4-nitrobenzoate) Tetraaquamanganese (II) Dihydrate (BNMD)

2017 ◽  
Vol 6 (1) ◽  
pp. 62-68
Author(s):  
S. Vetrivel ◽  
R. U. Mullai ◽  
K. Kanagasabapathy ◽  
R. Aruljothi ◽  
V. Praveenkumar
Keyword(s):  
Single Crystal ◽  
Second Harmonic ◽  
Thermal Studies ◽  
Wavelength Region ◽  
Soft Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Evaporation Technique ◽  
Uv Visible

Semiorganic optically transparent Bis(4-nitrobenzoate) tetraaquamanganese (II) dihydrate [Mn (p-NO2C6H4COO)2 (H2O)4]·2H2O (BNMD) single crystals were grown by slow evaporation technique at room temperature. Single crystal X-ray diffraction analysis was carried out to determine the lattice parameters of the crystal. Powder X-ray diffraction pattern was recorded and indexed for the structural confirmation. The crystalline quality was confirmed by HRXRD. The presence of functional group in the compound has been confirmed by FTIR analysis. UV-Visible transmission spectrum has been recorded to determine the cut-off wavelength region of the crystal. The Second Harmonic Generation of BNMD crystal was confirmed by Kurtz-Perry powder method using Nd:YAG laser and found to be 0.59 times that of KDP. The dielectric response of the crystal was also investigated and reported. The microhardness study reveals that the hardness number (Hv) increases with load. From the values of work hardening coefficients, it was concluded that BNMD crystal belong to the category of soft materials. Thermal studies were performed using differential thermal analysis (DTA).

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 Growth and Characterization of Organic Based Marine Dye NLO Material: 7-Bromo-6-chloro-3-[3-[(2R, 3S)-3-hydroxy-2-piperidyl]-2-oxopropyl]-4(3H)-quinazolinone

2011 ◽  
Vol 8 (3) ◽  
pp. 1062-1067 ◽  
Author(s):  
M. Jayandran ◽  
V. Balasubramanian
Keyword(s):  
Grown Crystal ◽  
Second Harmonic ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
Ftir Studies ◽  
Visible Transmittance ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Uv Visible

An organic marine dye compound (7-bromo-6-chloro-3-[3-[(2R, 3S)-3-hydroxy-2-piperidyl]-2-oxopropyl]-4(3H)-quinazolinone) was synthesized. The characteristics of this dye is soluble in water. The organic compound was made into a crystal by slow evaporation technique. The grown crystals were characterized by single crystal x-ray diffraction (XRD) analysis, FTIR studies and UV-visible transmittance studies and the NLO activity of the grown crystal has been checked by second harmonic generation (SHG) test.

scholarly journals Synthesis, Spectral Characterization, Crystal Structure, Thermal Studies and Hirshfeld Surface Analysis of Novel Dichlorodi-(E)-N′-(4-methoxybenzylidene)benzohydrazide Manganese(II) Complex

2020 ◽  
Vol 32 (9) ◽  
pp. 2213-2221
Author(s):  
G. KAVITHA ◽  
M. UTHAYAKUMAR ◽  
VANDANA SHINDE ◽  
T. CHANDRASEKARAN ◽  
M. SURESH
Keyword(s):  
Single Crystal ◽  
Surface Analysis ◽  
Thermal Studies ◽  
Hirshfeld Surface ◽  
Octahedral Geometry ◽  
Hirshfeld Surface Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Uv Visible ◽  
Complex Crystal

A novel dichlorodi(E)-N′-(4-methoxybenzylidene)benzohydrazide manganese(II) (ENMB-Mn) complex has been successfully synthesized using (E)-N′-(4-methoxybenzylidene)benzohydrazide (ENMB) as ligand. The structure of the ENMB-Mn complex was studied by single crystal X-ray diffraction, UV-Visible, FTIR, thermogravimetric analysis (TGA) and Hirshfeld surface analysis. Results of single crystal X-ray diffraction found that the structure of ENMB-Mn complex crystal is triclinic with space group P-1 and lattice parameters of unit cell a, b and c values were 7.1900 Å, 8.9094 Å and 11.8130 Å, respectively. The structure of ENMB-Mn complex clearly indicates complete octahedral geometry [Mn(ENMB)2Cl2] with manganese(II) ion, where the ENMB and chlorine atoms ratio is 1:2:2, respectively. Further, the molecular properties like Hirshfeld surface analysis mapping are reported.

scholarly journals Synthesis, Growth, Optical, Structural and Mechanical Characterization of SPNP and KPNP Single Crystal using Ethanol as a Solvent

2019 ◽  
Vol 8 (4) ◽  
pp. 7782-7785
Keyword(s):  
Single Crystal ◽  
Mechanical Stability ◽  
Green Light ◽  
Hardness Test ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Window ◽  
Uv Visible ◽  
Vicker’S Microhardness

Single crystals of sodium para nitro phenol (SPNP) and potassium para nitro phenol (KPNP) was synthesized at room temperature by slow evaporation solution growth technique using ethanol as a solvent upto the size of 12 × 3 × 2 mm3 and 15 × 2 × 2 mm3 respectively. The grown crystals were characterized by UV- Visible, photoluminescence, Kurtz- Perry test, single crystal X-ray diffraction analysis and Vicker’s microhardness studies. Structural identification of grown crystals was done by single crystal X-ray diffraction and it shows both the crystals are belongs to triclinic crystal system. The SPNP and KPNP crystal emits green light radiation as evident from the PL measurement. The UV -Visible study revealed that the grown crystal has high transmission window with cut off wavelength of 207 nm and 208 nm respectively. And also the direct optical band gap was estimated to be 3.23 eV and 3.20 eV using Tauc’s plot. The SHG output of grown crystals was recorded by Kurtz Perry technique and it is found to be nearly five times greater than the reference KDP. The Vickers hardness test confirms the mechanical stability of the material.

scholarly journals Growth and Characterization of ULMA Single Crystals Doped with Ammonium Chloride

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
B. Sivasankari ◽  
P. Selvarajan
Keyword(s):  
Single Crystals ◽  
Ammonium Chloride ◽  
Visible Spectrum ◽  
Cutoff Wavelength ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nlo Property ◽  
Evaporation Technique ◽  
Uv Visible

Single crystals of pure and ammonium chloride-doped urea L-malic acid (ULMA) were grown by slow evaporation technique. Many interesting results on several properties of ammonium chloride impurity added to ULMA single crystals have been observed and studied. The different morphology of ammonium chloride-doped ULMA crystals was noticed and the effect of ammonium chloride doping on the growth, optical, and hardness properties has been investigated. The presence of functional groups has been estimated by FTIR analysis. The lattice parameters of the grown crystals were studied by single crystal X-ray diffraction technique. Powder X-ray diffraction studies confirm the diffraction planes of the grown crystals. The UV-visible spectrum shows the cutoff wavelength at 220 nm. A study on the thermal properties has also been carried out. The NLO property of the grown crystals was confirmed by SHG studies.

scholarly journals After 200 Years: The Structure of Bleach and Characterization of Hypohalite Ions by Single‐Crystal X‐Ray Diffraction

2021 ◽  
Author(s):  
Filip Topić ◽  
Joseph M. Marrett ◽  
Tristan H. Borchers ◽  
Hatem M. Titi ◽  
Christopher J. Barrett ◽  
...  
Keyword(s):  
Single Crystal ◽  
X Ray Diffraction ◽  
X Ray

Structural and Optical Characterization of Zinc Telluride Thin Films

2013 ◽  
Vol 665 ◽  
pp. 254-262 ◽  
Author(s):  
J.R. Rathod ◽  
Haresh S. Patel ◽  
K.D. Patel ◽  
V.M. Pathak
Keyword(s):  
Thin Films ◽  
Extinction Coefficient ◽  
Nir Spectroscopy ◽  
Optical Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Evaporation Technique ◽  
Film Form ◽  
Znte Thin Films

Group II-VI compounds have been investigated largely in last two decades due to their interesting optoelectronic properties. ZnTe, a member of this family, possesses a bandgap around 2.26eV. This material is now a day investigated in thin film form due to its potential towards various viable applications. In this paper, the authors report their investigations on the preparation of ZnTe thin films using vacuum evaporation technique and their structural and optical characterizations. The structural characterization, carried out using an X-ray diffraction (XRD) technique shows that ZnTe used in present case possesses a cubic structure. Using the same data, the micro strain and dislocation density were evaluated and found to be around 1.465×10-3lines-m2and 1.639×1015lines/m2respecctively. The optical characterization carried out in UV-VIS-NIR region reveals the fact that band gap of ZnTe is around 2.2eV in present case. In addition to this, it was observed that the value of bandgap decreases as the thickness of films increases. The direct transitions of the carries are involved in ZnTe. Using the data of UV-VIS-NIR spectroscopy, the transmission coefficient and extinction coefficient were also calculated for ZnTe thin films. Besides, the variation of extinction coefficient with wavelength has also been discussed here.

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

2012 ◽  
Vol 584 ◽  
pp. 13-17 ◽  
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.

Characterization of New Nonstoichiometric Ferroelectric (Li0.95Cu0.15)Ta0.76Nb0.19O3 and Comparative Study With (Li0.95Cu0.15)Ta0.57Nb0.38O3 as Photocatalysts in Microbial Fuel Cells

2018 ◽  
Vol 16 (2) ◽  
Author(s):  
S. Louki ◽  
N. Touach ◽  
A. Benzaouak ◽  
V. M. Ortiz-Martínez ◽  
M. J. Salar-García ◽  
...  
Keyword(s):  
Power Density ◽  
Microbial Fuel Cells ◽  
Removal Rate ◽  
Oxygen Demand ◽  
Ferroelectric Material ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Uv Visible

This work investigates the photocatalytic activity of new ferroelectric material with formula (Li0.95Cu0.15)Ta0.76Nb0.19O3 (LT76) in a single chamber microbial fuel cell (MFC) and compares its performance with the similar photocatalyst (Li0.95Cu0.15)Ta0.57Nb0.38O3 (LT57). The photocatalysts LT76 and LT57 were synthesized by ceramic route under the same conditions, with the same starting materials. The ratio Ta/Nb was fixed at 4.0 and 1.5 for LT76 and LT57, respectively. These phases were characterized by different techniques including X-ray diffraction (XRD), transmission electronic microscopy (TEM), particle size distribution (PSD), differential scanning calorimetry (DSC), and ultraviolet (UV)–visible (Vis). The new photocatalyst LT76 presents specific surface area of 0.791 m2/g and Curie temperature of 1197 °C. The photocatalytic efficiency of this material is assessed in terms of wastewater treatment and electricity generation by power density and removal rate of chemical oxygen demand (COD) in the presence of a light source. The values of maximum power density and COD removal were 19.77 mW/m3 and 93%, respectively, for LT76.

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