Defects related room temperature ferromagnetism in Cu-implanted ZnO nanorod arrays

Well-aligned ZnO nanorod arrays with room temperature ferromagnetism were prepared on glass substrate through hydrothermal method. The as-prepared nanorod arrays were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), photoluminescence (PL) spectrum, and magnetization measurements. The XRD and SEM results indicated that the ZnO nanorods are with the wurtzite structure and exhibit preferential (002) orientation withc-axis perpendicular to the substrate surface. The PL results suggested that the possible defect in the as-prepared ZnO nanorod arrays might beVZn,Oi, orOZn. The first-principles calculations reveal that the room temperature ferromagnetism may result from theVZndefects present in the ZnO nanorod and the hybridization of the Zn 3d states with O 2p states is responsible for the half-metallic ferromagnetism in ZnO nanorod.

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Room temperature electrically pumped ultraviolet random lasing from ZnO nanorod arrays on Si

Optics Express ◽

10.1364/oe.17.014426 ◽

2009 ◽

Vol 17 (16) ◽

pp. 14426 ◽

Cited By ~ 66

Author(s):

Xiangyang Ma ◽

Jingwei Pan ◽

Peiliang Chen ◽

Dongsheng Li ◽

Hui Zhang ◽

...

Keyword(s):

Room Temperature ◽

Zno Nanorod ◽

Nanorod Arrays ◽

Zno Nanorod Arrays ◽

Random Lasing ◽

Electrically Pumped

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Large-Scale Fabrication of Sub-20-nm-Diameter ZnO Nanorod Arrays at Room Temperature and Their Photocatalytic Activity

The Journal of Physical Chemistry C ◽

10.1021/jp9017597 ◽

2009 ◽

Vol 113 (24) ◽

pp. 10452-10458 ◽

Cited By ~ 37

Author(s):

Seungho Cho ◽

Semi Kim ◽

Ji-Wook Jang ◽

Seung-Ho Jung ◽

Eugene Oh ◽

...

Keyword(s):

Photocatalytic Activity ◽

Large Scale ◽

Room Temperature ◽

Zno Nanorod ◽

Nanorod Arrays ◽

Zno Nanorod Arrays ◽

20 Nm

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Room temperature synthesis and optical properties of small diameter (5 nm) ZnO nanorod arrays

Nanoscale ◽

10.1039/c0nr00278j ◽

2010 ◽

Vol 2 (10) ◽

pp. 2199 ◽

Cited By ~ 25

Author(s):

Seungho Cho ◽

Ji-Wook Jang ◽

Jae Sung Lee ◽

Kun-Hong Lee

Keyword(s):

Optical Properties ◽

Room Temperature ◽

Small Diameter ◽

Zno Nanorod ◽

Nanorod Arrays ◽

Zno Nanorod Arrays ◽

Temperature Synthesis ◽

Room Temperature Synthesis

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Fabrication of hierarchical Sn-doped ZnO nanorod arrays through sonicated sol−gel immersion for room temperature, resistive-type humidity sensor applications

Ceramics International ◽

10.1016/j.ceramint.2016.03.071 ◽

2016 ◽

Vol 42 (8) ◽

pp. 9785-9795 ◽

Cited By ~ 46

Author(s):

A.S. Ismail ◽

M.H. Mamat ◽

N.D. Md. Sin ◽

M.F. Malek ◽

A.S. Zoolfakar ◽

...

Keyword(s):

Room Temperature ◽

Humidity Sensor ◽

Sol Gel ◽

Zno Nanorod ◽

Nanorod Arrays ◽

Zno Nanorod Arrays ◽

Sensor Applications ◽

Resistive Type ◽

Doped Zno

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Fabrication and Study on Magnetic-Optical Properties of Ni-Doped ZnO Nanorod Arrays

Micromachines ◽

10.3390/mi10090622 ◽

2019 ◽

Vol 10 (9) ◽

pp. 622 ◽

Cited By ~ 2

Author(s):

Wei Wang ◽

Shoulong Hui ◽

Fuchun Zhang ◽

Xiaoyang Wang ◽

Shuili Zhang ◽

...

Keyword(s):

Magnetic Properties ◽

Room Temperature Ferromagnetism ◽

Hexagonal Wurtzite Structure ◽

Luminescent Properties ◽

Growth Conditions ◽

Second Phase ◽

Zno Nanorod ◽

Nanorod Arrays ◽

Zno Nanorod Arrays ◽

Ultraviolet Emission

Zn1-xNixO nanorod arrays were prepared on Si substrates by magnetron sputtering and hydrothermal methods at 100 °C. We studied the effects of doped concentration and hydrothermal growth conditions on the crystal structure, morphology, photoluminescence, and magnetic properties of Zn1-xNixO nanorod arrays. The research results show that the Zn1-xNixO nanorod have the hexagonal wurtzite structure without the appearance of the second phase, and all samples have a highly preferred orientation of a (002) crystal face. The Zn1-xNixO nanorod arrays exhibit obvious room temperature ferromagnetism with saturation magnetization at 4.2 × 10−4 emu/g, the residual magnetization is 1.3 × 10−4 emu/g and the coercive field is 502 Oe, and also excellent luminescent properties with seven times greater luminous intensity than that of ZnO nanorod arrays. The redshift of the ultraviolet emission peak was found by Ni2+ doping. We further explained the source and essence of the magnetic properties of Zn1-xNixO nanorod arrays and deemed that the magnetic moment mainly comes from the hybrid electron exchange of O 2p and Ni 3d state.

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