Surface enhanced Raman scattering and photoluminescence properties of catalytic grown ZnO nanostructures |
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Authors: | S K Panda and C Jacob |
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Institution: | (1) Materials Science Centre, Indian Institute of Technology, Kharagpur, 721302, India |
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Abstract: | Sword-like (diameter ranging from 40 nm to 300 nm) and needle-like zinc oxide (ZnO) nanostructures (average tip diameter ∼40 nm)
were synthesized on annealed silver template over silicon substrate and directly on silicon wafer, respectively via thermal
evaporation of metallic zinc followed by a thermal annealing in air. The surface morphology, microstructure, chemical analysis
and optical properties of the grown samples were investigated by field emission scanning electron microscopy, X-ray diffraction,
energy dispersive X-ray analysis, room temperature photoluminescence and Raman spectroscopy. The sword-like ZnO nanostructures
grown on annealed silver template are of high optical quality compared to needle-like ZnO nanorods for UV emission and show
enhanced Raman scattering. |
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Keywords: | PACS" target="_blank">PACS 78 30 Fs 78 55 Et 78 67 Bf 81 16 Hc |
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