كليدواژه :
sol gel , nanopowders , Optical properties , ZnO:Mn
چكيده فارسي :
Abstract: Zn˺-xMnxO (x=˹, ˹̄˹˻, ˹̄˹˿, ˹̄˺˹, ˹̄˺˾)
nanopowders were synthesized by the sol gel technique
calcinated at low temperatures. The solubility of
magnetic impurity has been increased and no detectable
secondary phases were observed even in the high Mndoping
samples. The phase formation, size and
morphology of nanoparticles were investigated using Xray
diffraction, TEM and SEM observations. Optical
characterizations, the effect of doping and lattice
dynamical parameters were carried out by means of
Fourier transform infrared (FTIR) spectroscopy. The
optical band gap energy decreases from ˼̄˻˻eV to
˼̄˺˻eV for pure ZnO and Zn˹̄̂Mn˹̄˺O dispersed
powders, respectively.
Keywords: ,,,
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