Influence of Sn Doping on Structural and Optical Properties of Zinc Oxide Nanorods Prepared via Hydrothermal Process

Title
Influence of Sn Doping on Structural and Optical Properties of Zinc Oxide Nanorods Prepared via Hydrothermal Process
Author(s)
김종수Hyunggil Park[Hyunggil Park]Younggyu Kim[Younggyu Kim]Iksoo Ji[Iksoo Ji]Hyonkwang Choi[Hyonkwang Choi]Sang-heon Lee[Sang-heon Lee]Jin Soo Kim[Jin Soo Kim]Jae-Young Leem[Jae-Young Leem]
Keywords
ZNO THIN-FILMS; SOL-GEL METHOD; SPRAY-PYROLYSIS; CONSTANTS; AL; CELLS
Issue Date
201411
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.11, pp.8482 - 8488
Abstract
Hydrothermally grown ZnO nanorods were doped with various concentrations of Sn, ranging from 0 to 2.5 at%. Scanning electron microscopy (SEM), X-ray diffractometer (XRD), ultraviolet (UV)-visible spectroscopy, and Photoluminescence (PL) measurements were used to determine the effect of Sn doping on the structural and optical properties. In the SEM images, the nanorods have hexagonal wurtzite structure and the diameter of the nanorods increases with an increase in the Sn content. The optical parameters of the Sn-doped ZnO (SZO) nanorods such as the absorption coefficients, optical bandgaps, Urbach energies, refractive indices, dispersion parameters, dielectric constants, and optical conductivities were determined from the transmittance and reflectance results. In the PL spectra, the intensity of the NBE peak in the UV region decreases and is blue-shifted with an increase in the Sn content, while the DLE peaks of the nanorods in the visible region shift toward the low-energy region with the introduction of Sn.
URI
http://hdl.handle.net/YU.REPOSITORY/30438http://dx.doi.org/10.1166/jnn.2014.9970
ISSN
1533-4880
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이과대학 > 물리학과 > Articles
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