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Issue 38, 2018
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Shape-controlled synthesis of nanostructured Co-doped ZnO thin films and their magnetic properties

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Abstract

Through an understanding of the growth mechanism of diluted magnetic semiconductor (DMS) nanostructures, we tried to manipulate the performance of DMS-based devices. Under hydrothermal conditions, self-assembled complex nanostructures (flowers, sheaves, and cactuses) of Co-doped ZnO DMS thin films were selectively grown. Based on detailed scanning electron microscopy, energy-dispersive X-ray analysis, the sensitivity of the grazing incidence X-ray diffraction and transmission electron microscopy, the possible growth mechanism and phase analysis of the Co-doped ZnO nanostructures were proposed. The observation demonstrates that through self-assembly of 1D primary nanoparticles via oriented attachment or twinning coalescence, the transformation to 3D complex nanostructures was controlled. These novel Co-doped ZnO nanostructures exhibited enhanced ferromagnetism that can potentially improve the performance of spintronic devices. Our findings provide a better insight into the underlying growth mechanisms of the ferromagnetic Co-doped ZnO nanostructures.

Graphical abstract: Shape-controlled synthesis of nanostructured Co-doped ZnO thin films and their magnetic properties

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Publication details

The article was received on 05 May 2018, accepted on 23 Aug 2018 and first published on 23 Aug 2018


Article type: Paper
DOI: 10.1039/C8CE00738A
Citation: CrystEngComm, 2018,20, 5844-5856
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    Shape-controlled synthesis of nanostructured Co-doped ZnO thin films and their magnetic properties

    F. A. Taher and E. Abdeltwab, CrystEngComm, 2018, 20, 5844
    DOI: 10.1039/C8CE00738A

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