Kalainathan S

Department of Physics

School of Advanced Sciences

Vellore Campus

Karthigha S

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Journal of Crystal Growth

An organic quinolinium derivative nonlinear optical (NLO) crystal, 1-ethyl-2-[2-(4-nitro-phenyl)-vinyl]-quinolinium iodide (PNQI) was synthesized and successfully grown by slow evaporation solution growth technique. Formation of a crystalline compound was confirmed by single crystal X-ray diffraction. The quinolinium compound PNQI crystallizes in the triclinic crystal system with a centrosymmetric space group of P-1 symmetry. The molecular structure of PNQI was confirmed by 1H NMR and 13C NMR spectral studies. The thermal properties of the crystal have been investigated by thermogravimetric (TG) and differential scanning calorimetry (DSC) studies. The optical characteristics obtained from UV–Vis–NIR spectral data were described and the cut-off wavelength observed at 506 nm. The etching study was performed to analyse the growth features of PNQI single crystal. The third order NLO properties such as nonlinear refractive index (n2), nonlinear absorption coefficient (β) and nonlinear susceptibility (χ (3)) of the crystal were investigated using Z-scan technique at 632.8 nm of He[sbnd]Ne laser. © 2017 Elsevier Ltd

Journal of Physics and Chemistry of Solids

Synthesis, growth, crystal structure, optical and third order nonlinear optical properties of quinolinium derivative single crystal: PNQI

An organic quinolinium derivative crystal 1-ethyl-2-[2-(3,4,5-trimethoxy-phenyl) vinyl]-quinolinium iodide has been synthesized by knoevenagel condensation reaction and the crystals were grown by solution growth method for the first time. The grown crystal structure was confirmed by single crystal X-ray diffraction analysis and it showed that TMQI crystal belong to the triclinic space group P-1. The molecular structure and composition of the crystal was further confirmed by Fourier transform infrared (FT-IR) and nuclear magnetic resonance (FT-NMR) spectroscopic techniques. The thermal stability of the title crystal has been investigated by TG/DSC curves. The linear optical response of the grown crystal has been examined by using UV–Vis-NIR spectral analysis, and the photoluminescence spectrum exhibits strong emission radiation at 558 nm. The chemical etching analysis was carried to reveal the growth pattern of TMQI crystal. Laser induced damage threshold of the title crystal was found to be 1.15 GW/cm2. The third order nonlinear optical property of grown crystal was studied using Z-scan technique and the magnitude of third order nonlinear susceptibility has found to be in the order of 10−3 esu, which is higher than the reported quinolinium derivative crystals. © 2017, Springer Science+Business Media New York.

Journal of Materials Science: Materials in Electronics

Synthesis, growth, structural, optical and third order nonlinear optical properties of new quinolinium derivative single crystal: 1-ethyl-2-[2-(3,4,5-trimethoxy-phenyl) vinyl]-quinolinium iodide

Synthesis, growth, structural, optical, luminescence, surface and HOMO LUMO analysis of 2-[2-(4-cholro-phenyl)-vinyl]-1-methylquinolinium naphthalene-2-sulfonate organic single crystals grown by a slow evaporation technique

N-Ethyl quinolinium chromophore crystal 2-[2-(4-chloro-phenyl)-vinyl]-1-ethyl-quinolinium iodide (PCLQI) has been successfully grown by the slow evaporation technique.

RSC Advances

Synthesis, growth and third-order nonlinear optical properties of quinolinium single crystal-PCLQI

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Growth and characterization of novel organic 3-Hydroxy Benzaldehyde-N-methyl 4 Stilbazolium Tosylate crystals for NLO applications

A new organic stilbazolium derivative crystal 2-[2-(3-hydroxy-4-methoxy-phenyl)-vinyl]-1-methyl-pyridinium naphthalene-2-sulfonate dehydrate (C25H23NO5S·2H2O) (VSNS) was synthesized successfully.

RSC Adv.

Investigation of synthesis, crystal structure and third-order NLO properties of a new stilbazolium derivative crystal: a promising material for nonlinear optical devices

SETWM-19, ACBES-19, EEHSS-19 Nov. 18-19, 2019 Johannesburg (South Africa)

Crystal growth, structural investigation and characterization of newly grown quinolinium derivative single crystal: 1-Ethyl-2-(2-p-tolyl-vinyl)-quinolinium; iodide

Journal	Data powered by TypesetJournal of Crystal Growth
Publisher	Data powered by TypesetElsevier BV
ISSN	0022-0248
Open Access	0