Growth and studies on ferroelectric material l-proline doped tgs single crystals for ir detectors

Single crystals of triglycine sulphate (TGS) doped with L-proline have been grown from aqueous solutions by low-temperature solution growth method. The Fourier Transform Infrared spectroscopy has been recorded in the range 400 to 4000 cm–1 and the functional groups of the grown crystals have been identified. The structural studies on the grown crystals were carried out by X-ray diffraction analysis technique and found that the grown crystal crystallizes in monoclinic structure. The lattice cell parameters of pure Triglycine sulfate are a = 9.5020 Å, b = 12.6010 Å, c = 5.271 Å. Ultraviolet-Visible spectra show that the grown crystals have wide optical transparency in the entire visible region. It is found that solubility of the samples increase with the increase in temperature. Density of the grown samples were determined by floatation. Since the work hardening coefficient is found to be more than 1.6, all the grown crystals of this work are in the category of soft materials. Thermal studies were also carried out.