Kolloidale Verarbeitung, Drucken und Sintern nanokristalliner Oxide (English shop)

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ZnO and TiO2 nanoparticles have a broad range of applications, e.g. as gas sensors, solar cells or as (opto-)electronic devices. This work deals with the preparation and characterisation of colloidal dispersions, which were further processed by means of inkjet printing and UV laser sintering for the fabrication of devices. The properties of the printer, the rheological and chemical properties of the dispersions, the drying behaviour after deposition of the particle droplets on a substrate and the laser sintering were combined with one another and optimised, so that homogeneous and dense nanoparticle layers could be realised. In the last two sections of this work, a new method is presented with which dense (multi-)layers or structures can be produced and drying artefacts are strongly minimised. For this purpose, the methods of inkjet printing and laser sintering were, for the first time for ceramic systems, combined with one another and applied simultaneously, and used for the fabrication of devices with variable resistance.