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Preparation, crystal structure and physicochemical properties of nickel (II) nitrate hexahydrate boric acid: an efficient for nonlinear optical activity

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Abstract

The invention discloses a preparation method for nickel (II) nitrate hexahydrate boric acid and the growth of single crystals by the slow evaporation solution growth technique. Single crystal x-ray diffraction (XRD) analysis shows N2NHB crystallize in triclinic P crystal system with lattice parameters of a = 6.61 Å, b = 7.05 Å, c = 7.07 Å, α = 119.61°, β = 92.25°, γ = 101.11° and volume = 278 Å3. The chemical composition and the corresponding functional groups of the grown crystal have been identified by EDAX and FTIR analyses. Scanning electron microscope (SEM) pictograph indicated that the particles were closely spherical in shape with slight agglomeration. UV–Visible studies shows N2NHB crystal exhibit lower cut-off wavelength of 314 nm, wide optical window (320 – 800 nm) and wide band gap of 4.16 eV. According to the fluorescence spectrum, the emission occurs at a wavelength of 533 nm. Different temperatures were used to study the Grown crystalc dielectric behaviour. A positive photocurrent is found in the Grown crystal, as shown by the photoconductivity analysis. The second harmonic generation (SHG) capability was demonstrated by the standard Kurtz and Perry powder method. Open aperture Z-scan technique reveals that the material exhibits two-photon absorption phenomenon with nonlinear absorption coefficient of 0.75 × 10−11 m/W. The material displays optical limiting behaviour with an onset limiting threshold of 4.72 × 1012 W/m2. Altogether the grown N2NHB crystal can be utilized wide variety of optoelectronic applications of which optical limiting activity for laser safety devices is notable.

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The authors declared that the data used in this paper is not used by any research work not shared to any instutition/agenecy.

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Acknowledgements

The authors would like to extend their heartfelt gratitude to SAIF IIT, Madras, for being helpful with the XRD experimentation. In addition, we would like to express our gratitude to the Department of Physics at BS Abdur Rahman University (BSAU), which is located in Chennai, for supplying the SHG analysis measurement equipment.

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The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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V. Selvarani & P. Shenbagarajan: Conceptualization, Formal analysis, Writing -original draft, Data curation, Visualization. P. Jayaprakash: Formal analysis, Visualization, Investigation, Validation, Writing—review & editing. P. Ravichandran: Conceptualization, Methodology, Writing—review & editing, Validation, Investigation. T. C. Sabari Girisun & S. Selvaraj: Writing—review & editing, Resources, Methodology.

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Correspondence to P. Jayaprakash.

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Selvarani, V., Jayaprakash, P., Ravichandran, P. et al. Preparation, crystal structure and physicochemical properties of nickel (II) nitrate hexahydrate boric acid: an efficient for nonlinear optical activity. Opt Quant Electron 56, 582 (2024). https://doi.org/10.1007/s11082-023-06261-y

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  • DOI: https://doi.org/10.1007/s11082-023-06261-y

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