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Issue 30, 2016
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Zinc diketonates as single source precursors for ZnO nanoparticles: microwave-assisted synthesis, electrophoretic deposition and field-effect transistor device properties

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Abstract

The microwave-assisted decomposition of zinc diketonates in acetonitrile leads to stable dispersions of zinc oxide nanoparticles. The variation of the diketonato ligand framework permits controlling the size of primary crystallites and soft agglomerates, which allows the synthesis of nanoparticles in the range of 4–6 nm. Field-effect transistors are fabricated with charge carrier mobility as high as 0.32 cm2 V−1 s−1 and an Ion/off ratio of ∼106 after post-annealing at only 250 °C in air. Their superior performance is attributed to the dense packing of the ZnO particles in the semiconducting layer. Dispersions in aprotic solvent are suitable for a cathodic electrophoretic deposition of ZnO layers on ITO coated glass electrodes. Uniform ZnO coatings exhibiting interference colours can be obtained with thicknesses of several hundred nanometers.

Graphical abstract: Zinc diketonates as single source precursors for ZnO nanoparticles: microwave-assisted synthesis, electrophoretic deposition and field-effect transistor device properties

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Publication details

The article was received on 16 Jun 2016, accepted on 12 Jul 2016 and first published on 19 Jul 2016


Article type: Paper
DOI: 10.1039/C6TC02489K
Citation: J. Mater. Chem. C, 2016,4, 7345-7352
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    Zinc diketonates as single source precursors for ZnO nanoparticles: microwave-assisted synthesis, electrophoretic deposition and field-effect transistor device properties

    R. C. Hoffmann, S. Sanctis, E. Erdem, S. Weber and J. J. Schneider, J. Mater. Chem. C, 2016, 4, 7345
    DOI: 10.1039/C6TC02489K

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