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Title: Spectroscopic properties of (PVA+ZnO):Mn{sup 2+} polymer films

Electron Paramagnetic Resonance (EPR), optical absorption and infrared spectral studies have been carried out on Mn{sup 2+} ions doped in poly(vinyl alcohol) complexed with zinc oxide polymer films prepared by solution cast technique. The EPR spectra of 1 mol% Mn{sup 2+} ions doped polymer complex (PVA+ZnO) at room temperature exhibit sextet hyperfine structure (hfs), centered at 2.01. The spin-Hamiltonian parameter values indicate that the ground state of Mn{sup 2+} ion in d{sup 5} and the site symmetry around Mn{sup 2+} ions in tetragonally distorted octa hedral site. The optical absorption spectra exhibits two bands centered at 275nm at 437nm. The FTIR spectrum exhibits bands characteristic of stretching and banding vibrations of O-H, C-H and C=C groups.
Authors:
; ; ; ;  [1]
  1. Dept. of Physics, Acharya Nagarjuna University, N. Nagar-522510, A.P (India)
Publication Date:
OSTI Identifier:
22391771
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1661; Journal Issue: 1; Conference: ICCMP 2014: International Conference on Condensed Matter Physics 2014, Shimla (India), 4-6 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION SPECTRA; DOPED MATERIALS; ELECTRON SPIN RESONANCE; FOURIER TRANSFORMATION; GROUND STATES; HAMILTONIANS; HYPERFINE STRUCTURE; INFRARED SPECTRA; MANGANESE IONS; PVA; SPIN; TEMPERATURE RANGE 0273-0400 K; THIN FILMS; ZINC OXIDES