• Dr. P.PUNITHA
• S. Senthilkumar

The effect of the addition of Se (IV) on the growth and various properties of ammonium di hydrogen phosphate single crystals grown from aqueous solution by the slow evaporation method have been studied. The grown crystals were subjected to FT-IR, UV-Vis TG/DTA, Powder XRD, SEM-EDS and NLO studies. The reduction in the intensity observed in powder X-ray diffraction of doped specimen and The FT-IR spectral analysis confirms that slight shifts in vibrational frequencies confirm the lattice stress as a result of doping. UV-Vis study shows that the transparency is not affected much by the dopants. Thermal analysis studies reveal the purity of the materials and no decomposition is observed up to the melting point The reduction in the intensity observed in powder X-ray diffraction of doped specimen. Surface morphological changes due to doping of selenium metal are observed by scanning electron microscopy. The incorporation of Se(IV)in to the crystal lattice was confirmed by energy dispersive X-ray spectroscopy. The crystal is further characterized by Kurtz powder technique and Non-Linear optical studies.

Non-Linear Optics, Characterisation, Growth from solution, X-diffraction, Selenium Compounds, Crystal growth; Spectral analysis.

"Growth, characterisation and spectroscopy studies of ADP Single crystals with Se(IV)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.3137-3148, May 2019, Available :http://www.jetir.org/papers/JETIR1905V35.pdf

"Growth, characterisation and spectroscopy studies of ADP Single crystals with Se(IV)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp3137-3148, May 2019, Available at : http://www.jetir.org/papers/JETIR1905V35.pdf