Uniaxial growth of nonlinear optical active lithium para-nitrophenolate trihydrate single crystal by Sankaranarayanan–Ramasamy (SR) method

Optically transparent bulk single crystal of lithium para-nitrophenolate trihydrate has been grown along (1 1 0) plane using the uniaxial crystal growth method of Sankaranarayanan–Ramasamy with a slight modification in the growth assembly. The crystal was grown with a growth rate of 7 mm per day up to a dimensions of 80 mm length and 12 mm diameter with in a period of 12 days having cylindrical morphology. The grown crystal was confirmed by single crystal X-ray diffraction analysis. The optical transparency of the crystal was observed by UV–Vis–NIR spectral analysis. The mechanical strength of the grown crystal was tested by Vickers microhardness test along the growth plane (1 1 0). Frequency dependent dielectric studies were carried out along the growth axis.