Research Article
Open Access
Effect of Fe(II) and Fe(III) doping in Ammonium Dihydrogen Phosphate Crystals
M. Dhanalakshmi1 and S. Parthiban2*
1Research Scholar, Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India
2Assistant Professor, Department of Chemistry, Annamalai University, Annamalainagar 608002, Tamilnadu, India
2Assistant Professor, Department of Chemistry, Annamalai University, Annamalainagar 608002, Tamilnadu, India
M. Dhanalakshmi et al /Int.J. TechnoChem Res. 2016,2(3),pp 181-188.
Abstract
Ammonium dihydrogen phosphate (ADP) is an available inorganic non-linear optical material
needed for laser radiation. The beneficial optical crystals of pure, Fe (II) and Fe (III) (1 mol %) doped
ADP crystals were obtained by slow evaporation solution growth technique (SEST). Well acquired
crystals were characterized by different experimental techniques. Powder X-ray diffraction (XRD) and
Fourier transform-infra-red (FT-IR) spectral studies substantiate the slight distortion of the crystal
structure due to doping. The thermo-gravimetric and differential thermal analysis (TG-DTA) studies
expose the pureness of the grown crystals. Scanning electron microscopic (SEM) analysis brings out the
changes in the surface morphology because of doping. Optical studies were carried out by diffuse
reflectance spectra (DRS). The second harmonic generation (SHG) efficiency, an essential requirement
for the single crystals to identify the non-linear optical property was carried out by Kurtz powder
technique.
needed for laser radiation. The beneficial optical crystals of pure, Fe (II) and Fe (III) (1 mol %) doped
ADP crystals were obtained by slow evaporation solution growth technique (SEST). Well acquired
crystals were characterized by different experimental techniques. Powder X-ray diffraction (XRD) and
Fourier transform-infra-red (FT-IR) spectral studies substantiate the slight distortion of the crystal
structure due to doping. The thermo-gravimetric and differential thermal analysis (TG-DTA) studies
expose the pureness of the grown crystals. Scanning electron microscopic (SEM) analysis brings out the
changes in the surface morphology because of doping. Optical studies were carried out by diffuse
reflectance spectra (DRS). The second harmonic generation (SHG) efficiency, an essential requirement
for the single crystals to identify the non-linear optical property was carried out by Kurtz powder
technique.
Keywords
ADP, non-linear optical, SEST, SHG.
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