Effects of Fe Doping on the Crystal Structures and Photoluminescence of ZnO Nanorods

The 5% Fe-doped ZnO nanorods (Zn0.95Fe0.05O) were prepared successfully by the wet-chemical synthesis method. Structure and morphology characterization were demonstrated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Laser power dependent photoluminescence (PL) spectra were measured to study the electronic structures of the Fe-doped ZnO-based diluted magnetic semiconductors. The contraction of lattice constant and structured green-yellow-red emissions were analyzed. Such investigations confirmed that the induced defects or impurities originating from Fe ions.

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Synthesis and Characterization of Ni-Doped ZnO Nanorods Prepared by Hydrothermal Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.785-786.582 ◽

2013 ◽

Vol 785-786 ◽

pp. 582-585

Author(s):

Zhi Qiang Wei ◽

Xiao Juan Wu ◽

Ling Ling Zhang ◽

Wang Jun Feng ◽

Hua Yang

Keyword(s):

Hydrothermal Method ◽

Diluted Magnetic Semiconductors ◽

Magnetic Semiconductors ◽

Hexagonal Phase ◽

Zno Nanorods ◽

X Ray ◽

Transmission Electron ◽

Doped Zno ◽

Diluted Magnetic ◽

Constituent Elements

Ni-doped ZnO diluted magnetic semiconductors nanorods were successfully synthesized by hydrothermal method. The crystal structure, morphology, constituent elements and optical proprety of the products using this method were investigated via X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray energy dispersive spectrometry (XEDS) and ultraviolet-visible spectroscopy (UV-vis). The experiment results show that the morphology of samples were nanorods with good dispersion, all the diffraction peaks correspond to the wurtzite structure hexagonal phase, no other impurity phase appeare, and the Ni2+ions successfully substituted for the lattice site and generate single-phase Zn1-xNixO. The band gap increases firstly and reduces afterward with the increase of Ni2+contents.

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Diluted magnetic semiconductors: Mn/Co-doped ZnO nanorods as case study

Journal of Materials Chemistry ◽

10.1039/b808361d ◽

2008 ◽

Vol 18 (43) ◽

pp. 5208 ◽

Cited By ~ 93

Author(s):

Igor Djerdj ◽

Georg Garnweitner ◽

Denis Arčon ◽

Matej Pregelj ◽

Zvonko Jagličić ◽

...

Keyword(s):

Diluted Magnetic Semiconductors ◽

Magnetic Semiconductors ◽

Zno Nanorods ◽

Doped Zno ◽

Diluted Magnetic ◽

Co Doped

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Annealing temperature enhanced visible absorption and magnetic properties of (Cu, Cr) co-doped ZnO diluted magnetic semiconductors

Journal of Molecular Structure ◽

10.1016/j.molstruc.2021.131536 ◽

2022 ◽

Vol 1249 ◽

pp. 131536

Author(s):

R. Kabilan ◽

M. Ashokkumar

Keyword(s):

Magnetic Properties ◽

Diluted Magnetic Semiconductors ◽

Annealing Temperature ◽

Magnetic Semiconductors ◽

Visible Absorption ◽

Doped Zno ◽

Diluted Magnetic ◽

Co Doped

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Synthesis and characterization of Mn-doped ZnO diluted magnetic semiconductors

Physica B Condensed Matter ◽

10.1016/j.physb.2015.08.001 ◽

2015 ◽

Vol 477 ◽

pp. 20-28 ◽

Cited By ~ 14

Author(s):

A. Abdel-Galil ◽

M.R. Balboul ◽

A. Sharaf

Keyword(s):

Diluted Magnetic Semiconductors ◽

Magnetic Semiconductors ◽

Synthesis And Characterization ◽

Doped Zno ◽

Diluted Magnetic ◽

Mn Doped

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Anomalous Ferromagnetism and Electron Microscopy Characterization of High-Quality Neodymium Oxychlorides Nanocrystals

NANO ◽

10.1142/s179329201650034x ◽

2016 ◽

Vol 11 (03) ◽

pp. 1650034

Author(s):

Xinliang Zheng ◽

Juan Feng ◽

Jiarui Zhang ◽

Hongna Xing ◽

Jiming Zheng ◽

...

Keyword(s):

Electron Microscopy ◽

Diluted Magnetic Semiconductors ◽

Magnetic Semiconductors ◽

X Ray Diffraction ◽

High Quality ◽

Selected Area Electron Diffraction ◽

Transmission Electron ◽

Diluted Magnetic ◽

Microscopy Characterization

High-quality neodymium oxychlorides nanocrystals with cubic shape were synthesized by a nonhydrolytic thermolysis route. The morphology and crystal structure of the neodymium oxychlorides nanocubes were characterized by transmission electron microscopy at the nanoscale. Transmission electron microscope (TEM) image shows that the neodymium oxychlorides nanocrystals are nearly monodispersed with cube-like shape. X-ray diffraction (XRD) and selected area electron diffraction (SAED) patterns of numerous neodymium oxychlorides nanocubes suggest a pure crystal phase with tetragonal PbFCl matlockite structure. HRTEM image of individual neodymium oxychlorides nanocubes indicate that each nanocubes have a single-crystalline nature with high quality. Unlike the anti-ferromagnetism of the bulk, the neodymium oxychlorides nanocubes show clearly anomalous ferromagnetic characteristic at room temperature. This finding provides a new platform for the exploration of diluted magnetic semiconductors, rare earth-based nanomaterials and so on.

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