Growth, piezoelectric study and particle size dependent SHG of an 80 mm long SR grown imidazolium l-tartrate single crystals

Single crystal of imidazolium l-tartrate (IMLT), an organic nonlinear optical material, was successfully grown by slow evaporation solution growth technique (SEST) and Sankaranarayanan – Ramasamy (SR) method. The crystal structure and its lattice parameters were confirmed by single crystal X-ray diffraction study. The IMLT crystal belongs to monoclinic crystal system having a = 7.579(6) Å, b = 6.911(4) Å, c = 8.9281(5) Å, β = 101.45(8)°, volume, V = 458.33 Å3. The d33 coefficient found from the the piezoelectric study is 23 pC/N. The relative second harmonic generation efficiency of IMLT was found to be 3.16 times that of reference KDP material.