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

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