SKM 2021 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 1: Thin Film Properties
DS 1.3: Vortrag
Montag, 27. September 2021, 10:30–10:45, H3
Cellulose nanofibrils as sustainable template material for thin silver nanowire electrodes fabricated via spray deposition — •Marie Betker1,2, Constantin Harder1,3, Elisabeth Erbes1,4, Matthias Schwartzkopf1, Andrei Chumakov1, Daniel L. Söderberg2, and Stephan V. Roth1,2 — 1Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany — 2KTH Royal Institute of Technology, Teknikringen 8, 10044 Stockholm, Sweden — 3Physik-Department E13, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany — 4Institute for X-ray Physics, Goettingen University, Friedrich Hund Platz 1, 37077 Goettingen, Germany
Cellulose nanofibrils (CNFs) are wood-based, lightweight, and flexible, making them suitable for the fabrication of sustainable composite materials. With spray deposition the preparation of thin, homogenous CNF films of large scale and with an low roughness as well as their functionalization with e.g. nanoparticles is possible. We use CNF as a sustainable template material for the fabrication of two different types of thin silver nanowire (AgNW) electrodes via spray deposition: (I) A layered structure of a AgNW-network on top of a thin CNF layer and (II) a thin layer consisting of a mixture of CNF and AgNW. We compare the structural and electrical properties of both types using SEM, AFM, grazing incidence small angle X-ray scattering (GISAXS), and four-point measurements. The results demonstrate that type (II) is more conductive, leading to the conclusion that CNF has beneficial templating effects on the electronic properties of the AgNW network.