• Crystal growth of organic guanidinium hydrogen glutarate and its characterization for optical applications

• # Fulltext

https://www.ias.ac.in/article/fulltext/boms/045/0185

• # Keywords

Guanidinium hydrogen glutarate; NLO materials; thermal analysis; Z-scan studies.

• # Abstract

Guanidinium hydrogen glutarate (GHG) was synthesized by slow evaporation method. X-ray diffraction (XRD) study reveals that GHG crystallized into a triclinic system with the space group P$\bar{1}$. Crystallinity of the obtained GHG crystal was investigated with the help of the powder XRD analysis. High-intensity peak observed at 28° of the (1 –1 –2) plane confirms the good crystallinity of the GHG crystal. The crystalline nature of the synthesized crystal was tested through high-resolution XRD. The presence of different functional groups in the GHG material was analysed by the Fourier transform infrared and FT-Raman spectra. UV–Vis spectral analysis of the GHG material demonstrates 98% transmittance with a cut-off wavelength at 230 nm. The bandgap value of GHG is 5.01 eV. A peak at 421 nm is observed in the emission spectrum. The results imply that GHG crystals have a blue fluorescence emission. The thermal stability of the grown crystal was determined using thermal analysis. The GHG compound is stable up to 244°C and it has good degree of crystallinity. The mechanical behaviour of the title crystal was measured using microhardness studies. The GHG crystal shows that it belongs to soft material category. A dielectric study of the crystal was analysed at diverse temperatures. Third-order nonlinear optical (NLO) susceptibility is determined using through Z-scan studies. The nonlinear refractive index ($n_2$), nonlinear absorption coefficient (${\beta}$) and third-order NLO susceptibility (${\chi}^(3)$) were estimated to be –1.8545 ${\times}$ 10$^{–8}$ (cm$^2$ W$^{–1}$), 3.8015 ${\times}$ 10$^{–4}$ (cm W$^{–1}$) and 2.2150 ${\times}$ 10$^{–5}$ (esu), respectively. Optical limiting property of the GHG compound has also been discussed.

• # Author Affiliations

1. Department of Physics, Presidency College, Chennai 600 005, India

• # Bulletin of Materials Science

Volume 46, 2023
All articles
Continuous Article Publishing mode

• # Dr Shanti Swarup Bhatnagar for Science and Technology

Posted on October 12, 2020

Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020

Physical Sciences 2020

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Posted on July 25, 2019