Dresden 2017 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 38: Focussed Session: Memristive Devices for Neuronal Systems I

DS 38.9: Vortrag

Donnerstag, 23. März 2017, 12:45–13:00, CHE 89

Thin carbon nanotube (CNT) film networks and their memristive behaviors in cooperation with noble metal clusters — Victor Kaidas, Alexander Vahl, Sandra Hansen, Fabian Schütt, Jürgen Carstensen, Sören Kaps, Franz Faupel, Rainer Adelung, and •Heather Cavers — Institut für Materialwissenschaften der Christian Albrechts Universität, Kiel, Deutschland

Memristic devices have gained lot of attention since their discovery leading to many different fabrication ways. The first ones were based on the movement of oxygen vacancies or other charge carriers (e.g. Ag ions) in metal oxides induced by an applied field and a resulting drift in the respective matrix. As a consequence different matrix materials were investigated like polymers, biomaterials and carbon nanotubes (CNTs) in regards of their memristive effect in various systems, which is the main focus here as well. Our approach is based on a previous study in which semiconducting high aspect ratio materials in the micrometer regime and different hybridized carbon species were brought together and successfully checked for their memristive characteristics. Here we present a thin CNT film and the formation of a conducting network between two Au electrodes. To obtain the film different ways of applying the CNTs were used like spin, drop or spray coating until a sufficient network was achieved. By adding noble metal clusters into the network it is now possible to induce memristive effects by letting the corresponding ions move. Our long term goal is fabricating structures even with a higher range of interconnection with the outlook to obtain 3D memristive structures using this approach.