Abstract
Triglycine sulfate crystal and potassium bromide doped triglycine sulfate crystals were grown from aqueous solution by slow evaporation method. Energy dispersive X-ray analysis identifies the elements present in the crystal. 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 = 9.6010 A, b = 12.5600 A, c = 5.4500 A. Ultraviolet-Visible spectra show that the grown crystals have wide optical transparency in the entire visible region.
Highlights
Triglycine sulfate (TGS) crystal is an interesting ferroelectric and pyroelectric material which finds applications in the fabrication of infrared detectors, pyroelectric vidicon tube operating at room temperature, in the fabrication of capacitors, transducer and sensors [1,2]
TGS salts were synthesized and good quality, well facepure TGS crystal and this corresponds to the fundamental absorption and UV cut off wavelength
Using the formula dand transparent pure TGS and KBr doped TGS crystals have been successfully grown from aqueous solution by slow evaporation technique
Summary
Triglycine sulfate (TGS) crystal is an interesting ferroelectric and pyroelectric material which finds applications in the fabrication of infrared detectors, pyroelectric vidicon tube operating at room temperature, in the fabrication of capacitors, transducer and sensors [1,2]. Undoped TGS crystals have some disadvantages such as the ferroelectric domains possess high mobility at room temperature, easy depolarization by electrical and thermal means, microbial contamination with time during the growth and low curie point. These disadvantages can be overcome by adding suitable impurities to the lattice sites of TGS crystals [5,6,7]. Metallic ion dopants have been added to modify the properties of TGS crystals [12,13,14]. The objectives of present work are to investigate the effect of the dopant (KBr) on the growth, structural and optical properties of TGS crystals
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