Synthesis, Growth, and Characterization of Deuterated L-Alanine Triglycine Sulfate (Dlatgs) Single Crystal for Infra-Red Detector Applications

This paper describes the low temperature growth of triglycine sulphate (TGS) and deuterated L-alanine triglycine sulfate (DLaTGS) crystals using a slow cooling method. The dielectric, ferroelectric and pyroelectric properties of the grown crystals were investigated using LCR meter, Sawyer–Tower-modified circuit, and temperature ramping method, respectively. Powder X-ray diffractometer (XRD) was used to determine the crystal morphology and structure of the grown crystals. Fourier Transform Infrared (FTIR) spectroscopy was used in the range of 400 to 4000 cm–1 and the functional groups of the grown crystals have been identified. The results and analysis of DLaTGS detectors at 1 kHz using the black body testing station exhibit a novel behavior at room temperature with relatively low noise- equivalent power (NEP).