• K KRISHNARAJ

      Articles written in Bulletin of Materials Science

    • Growth, spectral, mechanical, electrical and optical characterization of guanidinium hydrogen succinate single crystal

      K KRISHNARAJ N SIVAKUMAR P PRAVEEN KUMAR

      More Details Abstract Fulltext PDF

      Slow evaporation method was employed to grow an organic crystal: guanidinium hydrogen succinate (GHS). Monoclinic structure of GHS was confirmed by single-crystal X-ray diffraction study and its space group was determined to be $P2_1/c$. Different functional groups present in GHS were estimated qualitatively by Fourier transform infrared analysis. The crystalline quality of the grown GHS was ascertained by high-resolution X-ray diffraction study. The UV–Vis absorption spectrum reveals a lower cut-off wavelength of 235 nm. The minimum absorption shows the wide optical transparency in the entire visible region.Work hardening co-efficient value ($n = 1.7$) shows that the GHS crystal belongs to soft material category. Behaviour of dipoles in the crystal was examined through dielectric study. The third-order nonlinear optical analysis wascarried out on GHS crystal through Z-scan technique. The nonlinear refractive index ($n_2$), nonlinear absorption coefficient ($\beta$) and third-order nonlinear optical susceptibility ($\chi^{(3)}$) were estimated to be $−5.78\times 10^{−8}$ cm$^2$ W$^{−1}$, $0.72\times 10^{−4}$ cm W$^{−1}$ and $8.09 \times 10^{−6}$ esu, respectively.

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