Abstract
Abstract Mn2+ doped ZnSe nanoparticles are prepared by using poly vinyl alcohol (PVA) as capping agent. Various physical parameters are calculated for the prepared sample and spectroscopic techniques such as XRD, optical, electron paramagnetic resonance (EPR) and FT-IR studies have been carried out. The particle size is characterized by powder X-ray diffraction and it is about 21 nm as calculated by Scherrer’s formula. The EPR spectrum at room temperature exhibits sextet hyperfine structure centered at g ≈ 2·0, characteristic of Mn2+ ions in octahedral symmetry. EPR and optical absorption studies reveal that the site symmetry of Mn2+ is predominantly octahedral. Crystal field and inter-electronic parameters are evaluated. FT-IR spectrum exhibits bands, which are attributed to O H, C H, C C and C O groups of stretching and bending vibrations.
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