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Optical and magnetic properties of (Zn,Mn)O nanostructures synthesized by CVD method

✍ Scribed by V. K. Sharma; B. K. Gupta; G. D. Varma

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
443 KB
Volume
46
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

We report on microstructural, optical and magnetic properties of (Zn,Mn)O nanostructures synthesized by a chemical vapor deposition (CVD) technique. Average diameters of the as grown (Zn,Mn)O nanorods and nanowires were ∼400 nm and ∼50 nm, respectively. X‐ray diffraction (XRD) and photoluminescence (PL) spectra provided the evidence that Mn was incorporated into ZnO lattice. PL spectra of the (Zn,Mn)O nanostructures showed shift in near band edge (NBE) emission at 396 nm together with a green band (GB) emission at 510 nm and a blue band (BB) emission at 460 nm. Magnetic measurements revealed mixed magnetic phases (ferromagnetic and antiferromagnetic) in the (Zn,Mn)O nanostructures. Vapor‐solid‐solid (VSS) mechanism was thought to be responsible for the growth of the nanostructures at low temperatures. (Β© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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