Abstract
Triglycine Sulfate (TGS) single crystal were grown using a slow evaporation method utilizing deionized water as a solvent at room temperature in two groups. The first group of crystals was grown in a variable pH medium. The second group consisted of crystals doped by Al ions with a varying concentration ratio. It was found that all the TGS crystals grown belong to the monoclinic system, as confirmed through XRD patterns. The results from UV-Vis analysis showed that the crystals grown in the acidic medium were more transparent with increased transmittance to visible light. In addition, the spectral patterns for the as-grown crystals were studied using the FTIR technique, which showed a slight shift, indicating that all the crystals had a similar crystalline structure. The high transmission in the entire visible region for all crystals indicates potential for use of such crystals in (SHG) devices and applications based on UV tunable lasers.
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