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SKM 2023 – scientific programme

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DS: Fachverband Dünne Schichten

DS 12: Poster

DS 12.34: Poster

Wednesday, March 29, 2023, 17:00–19:00, P3

Sprayed hybrid nanocellulose fibril-silver nanowire transparent electrodes — •Marie Betker1,2, Constantin Harder1,3, Elisabeth Erbes1,4, Julian Heger3, Alexandros E. Alexakis2,5, Benedikt Sochor1, Qing Chen1, Matthias Schwartzkopf1, Andrei Chumakov1, Peter Müller-Buschbaum3,6, Konrad Schneider7, Simone Techert1, L. Daniel Söderberg2,5, and Stephan V. Roth11DESY, 22607 Hamburg — 2Fibre and Polymer Technology, KTH, 10044 Stockholm, Sweden — 3TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching — 4Institute for X-ray Physics, Goettingen University, 37077 Goettingen — 5WWSC, KTH, 10044 Stockholm, Sweden — 6MLZ, TUM, 85748 Garching — 7Leibniz-Institut für Polymerforschung Dresden e.V., Abteilung Werkstofftechnik, 01069 Dresden

The fabrication of sustainable, thin, and flexible electrical devices on an industrial scale will be an important challenge in the future. Nanocomposites, consisting of conductive nanoparticles like silver nanowires (AgNWs) and a sustainable matrix material like cellulose nanofibrils (CNFs), can meet these requirements. Here, we report on the nanoscale structure and the corresponding optoelectronic properties of a sprayed CNFs-AgNWs nanocomposite electrode. Adding CNF to the aqueous AgNW-based spray ink improves the dispersion and distribution of the AgNWs. This, and the cold-welding of the AgNW junctions enhance the conductivity of the electrode greatly. Finally, we demonstrate the electrode's high transmittance, resilience under multiple cycles of bending deformations, and its long-term stability.

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