Dresden 2020 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 5: Biopolymers, Biomaterials and Bioinspired Functional Materials (joint session CPP/BP)

CPP 5.4: Talk

Monday, March 16, 2020, 10:15–10:30, ZEU 114

Structural and physical properties of Cellulose/Silver nanoparticle multi-layer film by layer-by-layer deposition — Qing Chen¹, •Andrei Chumakov¹, Calvin Brett^1,2, Anton Plech³, Peng Zhang⁴, and Stephan Roth^1,2 — ¹Deutsche Synchrotron (DESY), 22607, Hamburg, Germany — ²KTH Royal Institute of Technology, 10044, Stockholm, Sweden — ³Karlsruhe Institut of Technology (KIT), 76021, Karlsruhe, Germany — ⁴Sun Yat-sen University, 510275, Guangzhou, China

Silver nanoparticles and assembled structures thereof have attracted growing interest due to peculiar optical, electrical, catalytic and stimuli-responsive properties of these nanostructures during the past decade. We report a new strategy to fabricate multi-layered cellulose/AgNP-based thin-film by layer-by-layer (LBL) coating method, and the kinetics during each layer coating cycle was monitored by using grazing incidence small-angle X-ray scattering (GISAXS). Multilayered films were prepared by spray-coating technique. Spray conditions and solvent treatment of cellulose and AgNP layer were optimized according to structural and morphological characterization for the formation of an AgNP layer and each cellulose interface. Atomic force microscopy (AFM) was performed to visualize the morphological characteristics of the film surface. Moreover, our strategy provides a platform for easy and scalable production of large-area AgNP LBL films.