Idiosyncratic photoluminescence of europium added sulfamic acid single crystal a potential NLO material for optoelectronics and devise applications

The potential nonlinear optical (NLO) material of sulfamic acid (SA) with added europium (Eu3+) was suc-cessfully grown by the slow evaporation solution (SEST) and Sankaranarayanan-Ramasamy (SR) techniques. The grown crystals were characterised by single-crystal X-ray diffraction analysis to confirm the crystalline structure and morphology. The HRXRD analysis of the crystalline perfection revealed that it was of good crystalline quality. The Fourier transform infrared spectroscopy (FTIR) studies were effectively used to identify the func-tional groups present in the crystal and determine the molecular vibrations. The optical transmission spectra show that transparency is above 90% and the lower cutoff wavelength is 346 nm; the respective calculated energy band gap is 4.25 eV. The thermal behavior indicates that the sample is thermally stable up to 180 degrees C. The presence of europium in the crystal lattice is confirmed using energy dispersive X-ray analysis (EDAX). The grown crystal has a higher hardness value, and the crystal belongs to a soft material. The dielectric constant was higher and the dielectric loss was less in the grown crystals. The second harmonic generation efficiency of SEST and SR-grown crystals is 3.2 and 3.5 times greater than that of pure KDP. A photoluminescence (PL) study revealed that the intensity of 5 D0 -> 7 F2 emissions of Eu3+ is stronger than that of5 D0 -> 7 F1 emissions. The decay curve corresponding to Eu3+ in SA grown crystal is bi-exponential in nature. This crystal, showing wide trans-parency, significant dielectric properties, moderate thermal stability, and excellent red, indicates suitability for the Optoelectronics and device applications.

Automated summary

The potential nonlinear optical material of sulfamic acid (SA) with added europium (Eu3+) was successfully grown using the slow evaporation solution (SEST) and Sankaranarayanan-Ramasamy (SR) techniques. The crystal's structure and morphology were confirmed through single-crystal X-ray diffraction analysis. FTIR studies were used to identify functional groups and determine molecular vibrations. The grown crystals exhibited high transparency, moderate thermal stability, and excellent red light properties, making them suitable for optoelectronic and device applications.