Synthesis, growth and characterization of (tri) glycine barium chloride single crystal for applications in the domain of optoelectronics and photonics

The single crystal of (tri) glycine barium chloride, a semiorganic crystal has been grown from an aqueous solution by slow evaporation technique at room temperature. Glycine and barium chloride were used in molar ratio of 3:1 for synthesis. Good optical quality single crystal of size 18 × 10 × 5 mm³ was harvested in a period of 5 weeks (35 days) at pH value 5. The lattice parameters have been measured by single crystal XRD study. The crystalline nature has been confirmed by powder XRD study. Fourier transform infrared spectroscopy study confirmed the presence of functional groups in grown crystal. Transmission spectrum has been recorded and the cut-off wavelength has been determined as 234 nm. Also optical constants like band gap, refractive index, reflectance, extinction coefficient and electric susceptibility were determined from UV–Vis-NIR spectrum. The thermal behavior of the crystal was investigated by TG–DTA analysis, which reveals that crystal has thermally stable up to 169 °C. Non-linear optical property of the grown crystal has been confirmed using the Kurtz and Perry powder technique and result was compared with KDP. The dielectric behavior of the sample was analyzed with various frequencies at different temperatures. The photoconducting nature of the crystal was analyzed by photoconductivity study.