Issue 30, 2016

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

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

Supplementary files

Article information

Article type
Paper
Submitted
16 6 2016
Accepted
12 7 2016
First published
19 7 2016
This article is Open Access
Creative Commons BY license

J. Mater. Chem. C, 2016,4, 7345-7352

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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