SKM 2023 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 12: Poster

DS 12.34: Poster

Mittwoch, 29. März 2023, 17:00–19:00, P3

Sprayed hybrid nanocellulose fibril-silver nanowire transparent electrodes — •Marie Betker^1,2, Constantin Harder^1,3, Elisabeth Erbes^1,4, Julian Heger³, Alexandros E. Alexakis^2,5, Benedikt Sochor¹, Qing Chen¹, Matthias Schwartzkopf¹, Andrei Chumakov¹, Peter Müller-Buschbaum^3,6, Konrad Schneider⁷, Simone Techert¹, L. Daniel Söderberg^2,5, and Stephan V. Roth¹ — ¹DESY, 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.