Enhancement of yttrium ion on the properties of L-histidine nitrate single crystal for frequency conversion applications

AbstractNonlinear optical single crystals of L-histidine nitrate (LHN) as well as 0.05 mol % Y2+ doped LHN and 0.10 mol % Y2+ doped LHN were successfully grown by slow evaporation technique at room temperature. The lower cutoff wavelength and transmittance were 339 nm, 343 nm, 347 nm and 84 %, 86 % and 87 % for LHN, 0.05 mol % and 0.10 mol % yttrium doped LHN, respectively. Powder XRD studies revealed that the grown materials belong to an orthorhombic system with the space group P212121. FT-IR peak at 534 cm−1 due to yttrium coordinated with oxygen was observed. The EDAX analysis confirmed the presence of such elements as C, N, O and Y in the grown materials. High intensity PL emission peak was obtained at 420 nm.

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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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Growth and characterisation of sodium thiourea nitrate for optical crystal

International Journal of Science Technology and Humanities ◽

10.26524/ijsth66 ◽

2015 ◽

Vol 2 (2) ◽

pp. 102-104

Author(s):

Sakthi.P ◽

Rajasekaran.R

Keyword(s):

Crystal Structure ◽

Room Temperature ◽

Functional Group ◽

Cell Parameter ◽

Slow Evaporation ◽

Slow Evaporation Technique ◽

Evaporation Technique ◽

Uv Visible ◽

Optical Crystal ◽

Vicker’S Microhardness

Sodium thiourea nitrate (STN) a semi organic optical crystal was grown by slow evaporation technique at room temperature. The cell parameter value and crystal structure was determined Single crystal Xray diffraction study. Presence functional group was identified FTIR study. The cut-off wavelength was determined UV-visible transmission spectrum study. The mechanical strength was analysis using Vicker’s microhardness test.

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Growth, optical, spectral, thermal and mechanical investigations of organic NLO crystal cis-2, 6-bis(4-chlorophenyl)-3, 3-dimethylpiperidin-4-one

Bulletin of Scientific Research ◽

10.34256/bsr2112 ◽

2021 ◽

Vol 3 (1) ◽

pp. 13-20

Author(s):

Mohanraj V ◽

Ilango S.S. ◽

Ponnuswamy S

Keyword(s):

Spectral Studies ◽

Slow Evaporation ◽

Optical Studies ◽

Orthorhombic System ◽

Slow Evaporation Technique ◽

Evaporation Technique ◽

Ft Ir ◽

Solubility Studies ◽

Thermal Stability Of ◽

Mechanical Studies

The single crystal of cis-2,6-bis(4-chlorophenyl)-3,3-dimethylpiperidin-4-one (4C3DMPO) has been grown using a slow evaporation technique. 4C3DMPO is a non-centrosymmetric crystal which crystallizes in the orthorhombic system with space group Pna21. Benzene is used as a solvent for the crystal growth based on solubility studies. The mechanical studies, using microhardness methods, have also been carried out. The compound is characterised using UV, FT-IR and NMR spectral studies. Furthermore, the thermal stability of the crystal is established by TG/DTA. The nonlinear optical studies (SHG) of the crystal have been determined using the Kurtz and Perry powder technique and the activity observed is 2.5 times greater than that of KDP.

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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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Effect of trytophan as dopant on potassium acid phthalate single crystals

10.31221/osf.io/cn28k ◽

2019 ◽

Author(s):

Chem Int

Keyword(s):

Single Crystals ◽

Room Temperature ◽

Visible Region ◽

X Ray Diffraction ◽

X Ray ◽

Slow Evaporation Technique ◽

Absorption Studies ◽

Evaporation Technique ◽

Potassium Acid Phthalate ◽

Acid Phthalate

Optically transparent single crystals of potassium acid phthalate (KAP, 0.5 g) 0.05 g and 0.1 g (1 and 2 mol %) trytophan were grown in aqueous solution by slow evaporation technique at room temperature. Single crystal X- ray diffraction analysis confirmed the changes in the lattice parameters of the doped crystals. The presence of functional groups in the crystal lattice has been determined qualitatively by FTIR analysis. Optical absorption studies revealed that the doped crystals possess very low absorption in the entire visible region. The dielectric constant has been studied as a function of frequency for the doped crystals. The thermal stability was evaluated by TG-DSC analysis.

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