Low Temperature Mn Doped ZnO
Nanorod Array: Synthesis
and Its Photoluminescence Behavior
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Abstract
The present study
focused on low temperature synthesis of Mn doped
ZnO nanorod array film via chemical bath deposition method on glass
substrates. Microstructural, morphological, and optical properties
of Mn doped ZnO nanorods were investigated. X-ray diffraction patterns
showed sharp and intense peaks, indicating the highly crystalline
nature of the film. Energy dispersive X-ray (EDAX) results confirmed
the presence of Mn ions in ZnO nanorods. Scanning electron microscopy
(SEM) pictures suggested Mn doped ZnO nanorods were well aligned and
distributed throughout the surface. Vibrational analysis has been
carried out by Fourier transform infrared and Raman spectroscopy.
Room temperature photoluminescence (PL) exhibited the presence of
one broad defects related band in the visible region ranging 440–640
nm. Blue shifting in the absorption edge with Mn doping was observed
in absorption spectra