Synthesis and characterization of γ-glycine – a nonlinear optical single crystal for optoelectronic and photonic applications

AbstractA single crystal of gamma-glycine (GG), a polymorph of glycine, was synthesized by crystallization. The single crystal of GG was grown from an aqueous solution. The morphology of GG was studied in order to assess its growth facets. The good quality single crystals were subjected to X-ray diffraction studies to reveal their structure. The FT-IR spectral analysis was carried out to confirm the presence of expected functional groups. The UV-Vis analysis was done for GG single crystals to determine the optical transparency and band gap. Simultaneous TG-DTA analysis was employed to understand the thermal and physicochemical stability of the title compound. The mechanical stability and laser stability of GG single crystal were studied using Vickers microhardness test and laser induced damage threshold on different planes of the crystal to reveal its anisotropic nature. The dielectric measurement was carried out as a function of frequency and the results were discussed. The existence of second harmonic generation (SHG) of the title compound was confirmed by Kurtz-Perry powder technique. The SHG effective nonlinearity and particle size dependence of GG powder sample were compared with a standard reference material: potassium dihydrogen phosphate (KDP).

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

Modern Physics Letters B ◽

10.1142/s0217984909019363 ◽

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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A study on crystalline perfection, optical, dielectric, mechanical, laser damage threshold and NLO properties of glycine added potassium dihydrogen phosphate single crystals

10.1063/1.4710103 ◽

2012 ◽

Author(s):

K. Boopathi ◽

P. Rajesh ◽

P. Ramasamy

Keyword(s):

Single Crystals ◽

Potassium Dihydrogen Phosphate ◽

Damage Threshold ◽

Laser Damage Threshold ◽

Laser Damage ◽

Dihydrogen Phosphate ◽

Crystalline Perfection ◽

Potassium Dihydrogen ◽

Nlo Properties ◽

Optical Dielectric

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Remarkable enhancement in crystalline perfection, second harmonic generation efficiency, optical transparency, and laser damage threshold in potassium dihydrogen phosphate crystals by L-threonine doping

Journal of Applied Physics ◽

10.1063/1.3456995 ◽

2010 ◽

Vol 108 (3) ◽

pp. 033506 ◽

Cited By ~ 36

Author(s):

S. K. Kushwaha ◽

Mohd. Shakir ◽

K. K. Maurya ◽

A. L. Shah ◽

M. A. Wahab ◽

...

Keyword(s):

Second Harmonic ◽

Potassium Dihydrogen Phosphate ◽

Damage Threshold ◽

Laser Damage Threshold ◽

Laser Damage ◽

Dihydrogen Phosphate ◽

Crystalline Perfection ◽

Generation Efficiency ◽

Second Harmonic Generation Efficiency ◽

Potassium Dihydrogen

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Synthesis, crystal growth, characterization and DFT investigation of a nonlinear optically active cuminaldehyde derivative hydrazone

Acta Crystallographica Section B Structural Science Crystal Engineering and Materials ◽

10.1107/s2052520621001517 ◽

2021 ◽

Vol 77 (2) ◽

Author(s):

Venkatasamy Meenatchi ◽

Subramanian Siva ◽

SP Meenakshisundaram ◽

Liang Cheng

Keyword(s):

Single Crystal ◽

Density Functional ◽

Crystal Packing ◽

Second Harmonic ◽

Visible Region ◽

Potassium Dihydrogen Phosphate ◽

Dihydrogen Phosphate ◽

X Ray Diffraction ◽

Second Harmonic Generation Efficiency ◽

X Ray

Single crystals of (E)-N′-(4-isopropylbenzylidene)isonicotinohydrazide monohydrate (IBIHM) were grown from ethanol by the slow evaporation from solution growth technique at room temperature. The structure was elucidated by single-crystal X-ray diffraction analysis and crystallized in the orthorhombic system with noncentrosymmetric space group P212121. Optical studies reveal that the absorption was minimum in the visible region and the band-gap energy was estimated using the Kubelka–Munk algorithm. The functional groups were identified by Fourier transform infrared spectral analysis. A scanning electron microscopy study revealed the surface morphology of the grown crystal. Investigation of the intermolecular interactions, crystal packing using Hirshfeld surface analysis and single-crystal X-ray diffraction confirm that the close contacts were associated with molecular interactions. Fingerprint plots of Hirshfeld surfaces are used to locate and analyze the percentage of hydrogen-bonding interactions. The second-harmonic generation efficiency of the grown specimen was superior to that of the reference material, potassium dihydrogen phosphate. The grown crystals were further characterized by mass spectrometry and elemental analysis. Theoretical studies using density functional theory (DFT) greatly substantiated the experimental observations. Large first-order molecular hyperpolarizability (β) of about ∼70× was observed for IBIHM. The efficiency of IBIHM in terms of nonlinear optical response was verified and the molecule displayed greater chemical stability and reactivity.

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Growth and characterization of hexamethylenetetramine crystals grown from solution

Materials Science-Poland ◽

10.2478/s13536-013-0176-7 ◽

2014 ◽

Vol 32 (2) ◽

pp. 164-170 ◽

Cited By ~ 11

Author(s):

B. Babu ◽

J. Chandrasekaran ◽

S. Balaprabhakaran

Keyword(s):

Single Crystal ◽

Second Harmonic ◽

Potassium Dihydrogen Phosphate ◽

Optical Transmittance ◽

Xrd Analysis ◽

Powder Xrd ◽

Dihydrogen Phosphate ◽

Single Crystal Xrd ◽

Second Harmonic Generation Efficiency ◽

Different Temperatures

AbstractOrganic nonlinear optical single crystals of hexamethylenetetramine (HMT; 10 × 10 × 5 mm3) were prepared by crystallization from methanol solution. The grown crystals were subjected to various characterization techniques such as single crystal XRD, powder XRD, UV-Vis and electrical studies. Single crystal XRD analysis confirmed the crystalline structure of the grown crystals. Their crystalline nature was also confirmed by powder XRD technique. The optical transmittance property was identified from UV-Vis spectrum. Dielectric measurements were performed as a function of frequency at different temperatures. DC conductivity and photoconductivity studies were also carried out for the crystal. The powder second harmonic generation efficiency (SHG) of the crystal was measured using Nd:YAG laser and the efficiency was found to be two times greater than that of potassium dihydrogen phosphate (KDP).

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GROWTH AND CHARACTERIZATION OF NEW NONLINEAR OPTICAL SINGLE CRYSTALS OF 3-AMINOPHENOL ORTHOPHOSPHORIC ACID (3-AMPHPH)

Modern Physics Letters B ◽

10.1142/s0217984911500382 ◽

2012 ◽

Vol 26 (06) ◽

pp. 1150038

Author(s):

K. RUSSEL RAJ ◽

P. MURUGAKOOTHAN

Keyword(s):

Single Crystals ◽

Nonlinear Optical ◽

Orthophosphoric Acid ◽

Second Harmonic ◽

Potassium Dihydrogen Phosphate ◽

Xrd Analysis ◽

Solution Technique ◽

Dihydrogen Phosphate ◽

Cell Parameters ◽

Water As Solvent

The semi-organic 3-aminophenol-orthophosphoric acid (denoted as 3-amphph) single crystals were grown by slow evaporation solution technique with water as solvent. The resulted crystal has well-defined surface morphology and is transparent and colorless with a size of 29 × 17 × 4 mm3. The powder X-ray diffraction (XRD), NMR spectroscopic technique, UV-vis-NIR, TG/DTA and dielectric analysis are used to characterize the crystals. XRD analysis revealed that the crystal lattice of 3-amphph is orthorhombic having cell parameters a = 4.481(2) Å, b = 9.782(4) Å, c = 18.326(4) Å with non-centrosymmetric space group P 212121. Nonlinear optical studies indicated that the second harmonic generation (SHG) efficiency is 2.22 times that of the standard potassium dihydrogen phosphate (KDP) crystals. Growth mechanism and surface textures of the as-grown single crystals were analyzed by chemical etching analysis.

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Interesting growth features in potassium dihydrogen phosphate: unravelling the origin and dynamics of point defects in single crystals

Journal of Applied Crystallography ◽

10.1107/s0021889810033649 ◽

2010 ◽

Vol 43 (6) ◽

pp. 1372-1376 ◽

Cited By ~ 63

Author(s):

G. Bhagavannarayana ◽

P. Rajesh ◽

P. Ramasamy

Keyword(s):

High Resolution ◽

Single Crystal ◽

Single Crystals ◽

Point Defects ◽

Experimental Finding ◽

Potassium Dihydrogen Phosphate ◽

Dihydrogen Phosphate ◽

Potassium Dihydrogen ◽

X Ray ◽

Growth Features

In a potassium dihydrogen phosphate single crystal grown by the temperature-lowering technique, some interesting growth features revealing the origin of point defects, their agglomeration and dynamics were observed. High-resolution X-ray diffractometry was employed for in-depth studies of the observed defects. Since the crucial properties of crystal-based devices are very much influenced by such defects, this is an important experimental finding with respect to improving growth techniques or conditions to avoid such defects.

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