研究目的
To synthesize, grow, and structurally characterize semi-organic non-linear optical material L-arginine doped zinc sulphate heptahydrate single crystals and to study their properties for potential applications in non-linear optical devices.
研究成果
L-arginine doped zinc sulphate heptahydrate single crystals were successfully grown and characterized. The crystals exhibit good optical transparency, thermal stability, and mechanical hardness. The SHG efficiency of doped crystals is higher than pure zinc sulphate heptahydrate, making them suitable for non-linear optical applications.
研究不足
The study focuses on the synthesis and characterization of L-arginine doped zinc sulphate heptahydrate single crystals. Potential areas for optimization include exploring higher doping concentrations and investigating other dopants for enhanced non-linear optical properties.
1：Experimental Design and Method Selection:
Slow evaporation method was used to grow pure and L-arginine doped zinc sulphate heptahydrate single crystals.
2：Sample Selection and Data Sources:
Chemicals used were ZnSO4·7H2O and L-arginine from Sigma Aldrich. Double distilled water was used for crystal growth.
3：List of Experimental Equipment and Materials:
PANalytical powder X-ray diffractometer, Shimadzu-1800S spectrophotometer, Hitachi U-2000 double beam spectrophotometer, Perkin Elmer TGS-2 model thermal analyzer.
4：Experimental Procedures and Operational Workflow:
Crystals were grown from supersaturated aqueous solutions at ambient temperature. Characterization included powder XRD, FT-IR, UV-visible spectroscopy, TG/DTA analysis, Vicker's microhardness measurements, and SHG efficiency measurement.
5：Data Analysis Methods:
Lattice parameters were calculated from XRD patterns. Functional groups were identified from FT-IR spectra. Optical properties were analyzed from UV-visible spectra. Thermal stability was assessed from TG/DTA curves. Mechanical stability was evaluated from microhardness measurements. SHG efficiency was measured using Kurtz powder technique.
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