Dresden 2014 – scientific programme

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DS: Fachverband Dünne Schichten

DS 9: Layer Properties: Electrical, Optical, and Mechanical Properties

DS 9.3: Talk

Tuesday, April 1, 2014, 10:30–10:45, CHE 91

Investigations of the dependency of the infrared-optical and electrical properties of ITO coatings on the dip coating parameters and the coating thickness — •Nadine Wolf, Thomas Weis, and Jochen Manara — Bavarian Center for Applied Energy Research (ZAE Bayern)

Tin doped indium oxide (ITO) coatings were prepared with ITO nanoparticle suspensions via dip coating technique. The coatings have been prepared with different withdrawal speeds so that the coatings exhibit different thicknesses. If the thickness of the ITO coatings increases, the amount of free charge carriers within these coatings also increases and therefore the infrared-optical and electrical properties of the ITO coatings alter up to a certain extent, too. The change of the thickness and the optical constants of the ITO coatings with the withdrawal speed are measured with ellipsometry measurements. The infrared-optical and electrical properties are measured with Fourier transform infrared (FTIR) spectroscopy and four point probe measurements respectively. In this work the dependency of these properties is discussed as a function of the thickness and therefore withdrawal speed.