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<p>This study investigates the properties and applications of three organic imidazole tartrate compounds: Imidazole L-Tartrate (IMLT), Benzimidazole L-Tartrate (BILT), and 2-Methylimidazole L-Tartrate (2MILT). High-quality monoclinic crystals were grown using the slow solvent evaporation technique and characterized using powder X-ray diffraction, ATR-FTIR spectroscopy, and UV–Vis-NIR spectroscopy. The compounds exhibited significant optical transparency, with UV cut-off wavelengths at 245&#xa0;nm for IMLT and 2MILT, and 288&#xa0;nm for BILT, and optical band gaps of 4.8&#xa0;eV for IMLT and 4.2&#xa0;eV for BILT. Thermal analysis of IMLT, BILT and 2MILT crystals shows very high stability up to 214&#xa0;°C, 192&#xa0;°C and 210&#xa0;°C, respectively. Dielectric studies, supports their use in nonlinear optical (NLO) devices, due to low dielectric constants and dielectric losses without variation in ac conductivity up to 4&#xa0;MHz. IMLT exhibited the highest second harmonic generation (SHG) conversion efficieny, which is almost 3.5 times that of the KDP crystal, followed by BILT and 2MILT, at 2.69 times, and at 1.81 times, respectively. These findings highlight the potential of IMLT, BILT, and 2MILT for optoelectronic and NLO applications, with superior SHG efficiency and thermal stability.</p>

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Comparative analysis of structural, optical, thermal, and nonlinear optical properties of imidazole L-tartrate and its derivatives for advanced optoelectronic applications

  • 期刊论文

  • 发表日期：

    2025年9月26日

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  • Parth Raval,
  • Hiral Raval,
  • Abhishek Maled,
  • Bharat Parekh

摘要

This study investigates the properties and applications of three organic imidazole tartrate compounds: Imidazole L-Tartrate (IMLT), Benzimidazole L-Tartrate (BILT), and 2-Methylimidazole L-Tartrate (2MILT). High-quality monoclinic crystals were grown using the slow solvent evaporation technique and characterized using powder X-ray diffraction, ATR-FTIR spectroscopy, and UV–Vis-NIR spectroscopy. The compounds exhibited significant optical transparency, with UV cut-off wavelengths at 245 nm for IMLT and 2MILT, and 288 nm for BILT, and optical band gaps of 4.8 eV for IMLT and 4.2 eV for BILT. Thermal analysis of IMLT, BILT and 2MILT crystals shows very high stability up to 214 °C, 192 °C and 210 °C, respectively. Dielectric studies, supports their use in nonlinear optical (NLO) devices, due to low dielectric constants and dielectric losses without variation in ac conductivity up to 4 MHz. IMLT exhibited the highest second harmonic generation (SHG) conversion efficieny, which is almost 3.5 times that of the KDP crystal, followed by BILT and 2MILT, at 2.69 times, and at 1.81 times, respectively. These findings highlight the potential of IMLT, BILT, and 2MILT for optoelectronic and NLO applications, with superior SHG efficiency and thermal stability.