DataVXACS Applied Electronic MaterialsPaper
journal article·2020-04-28

Nonvolatile Memristive Switching in Self-assembled Nanoparticle Dimers

Maximilian Speckbacher, Matthias Jakob, Markus Döblinger, Jonathan G. C. Veinot, Aras Kartouzian, Ueli Heiz, Marc Tornow

ACS Applied Electronic Materials· Volume 2· Issue 4
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Source abstract

Abstract

The selective formation of heterogeneous nanoparticle (NP) agglomerates and their memristive switching properties are reported. Following surfactant-mediated self-assembly in suspension, agglomerates of silver nanocubes (AgNCs) and spherical silicon nanoparticles (SiNPs) are prepared in a bottom-up approach. Dimers comprising one AgNC and one SiNP are electrically contacted, and pronounced bipolar memristive switching is demonstrated. The formed nanoscale memristor junctions show in particular narrow distributions of the SET voltage, ON/OFF-resistance ratios in excess of three orders of magnitude, and good retention properties. Ex situ scanning electron microscopy studies directly support a switching model based on Ag-conductive filament formation in the polycrystalline SiNPs. We propose our self-assembled NP memristors as building blocks for the bottom-up construction of future 3D memristive networks.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Advanced Memory and Neural Computing · Photoreceptor and optogenetics research · Neuroscience and Neural Engineering

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Molecular Electronics, Department of Electrical and Computer Engineering, Technical University of Munich, Theresienstraße 90, 80333 Munich, Germany

Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany

Department of Chemistry, Ludwig-Maximilians-University, Butenandtstr 5-13, 81377 Munich, Germany

Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada

Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl Platz 1, 80539 Munich, Germany

Fraunhofer Research Institution for Microsystems and Solid State Technologies (EMFT), Hansastrasse 27d, 80686 Munich, Germany

Funding

Deutsche Forschungsgemeinschaft

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