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Open Access Photoluminescence properties of un-doped and Mn-doped ZnO nanostructures

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We presented combinations of vapor phase transport (VPT) of mixture of methanol and acetone and thermal evaporation of brass (CuZn) which contain in-situ three stages in obtaining un-doped and Mn-doped zinc oxide (ZnO) nanostructures (NSs). The structure and morphology were characterized by energy dispersive X-ray analysis (EDAX), field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The role of Ar as feed gas and interaction between methanol and brass have been predicted based on work reported elsewhere. Photoluminescence (PL) properties of un-doped and Mn-doped ZnO showed significant changes in the optical properties providing evidence for several types of defects such as zinc interstitials (Zn i ), oxygen interstitials (O i ), zinc vacancy (V Zn ), singly charged zinc vacancy (V Zn ), oxygen vacancy (V o ), singly charged oxygen vacancy (V+ o ) and oxygen antisite defects (O Zn ) in the grown NS. The Mn-doped ZnO NSs have exhibited shifted PL peaks compared to the un-doped ZnO.

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Keywords: DOPING; MANGANESE; NANOWIRE; PHOTOLUMINESCENCE; THERMAL EVAPORATION; ZINC OXIDE

Document Type: Research Article

Publication date: December 1, 2014

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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