Regensburg 2022 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 27: Composites and Functional Polymer Hybrids
CPP 27.3: Talk
Wednesday, September 7, 2022, 12:00–12:15, H39
In-situ GISAXS Observation and Large Area Homogeneity Study of Slot-Die Printed PS-b-P4VP and PS-b-P4VP/FeCl3 Thin Films — •Shanshan Yin1, Ting Tian1, Christian L. Weindl1, Kerstin S. Wienhold1, Qing Ji2, Yajun Cheng2, Yanan Li3, Christine M. Papadakis3, Matthias Schwartzkopf4, Stephan V. Roth4,5, and Peter Müller-Buschbaum1,6 — 1TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching — 2NIMTE, Chinese Academy of Sciences, 315201, P. R. China — 3TU München, Physik-Department, Fachgebiet Physik weicher Materie, 85748 Garching — 4DESY, 22607 Hamburg — 5Royal Institute of Technology KTH, 100 44 Stockholm — 6MLZ, TU München, 85748 Garching
Mesoporous hematite (Fe2O3) thin films with high surface-to-volume ratios show great potential as photoelectrodes or electrochemical electrodes in energy conversion and storage. In the present work, with the assistance of an up-scalable slot-die coating technique, highly ordered Fe2O3 thin films are successfully printed based on the amphiphilic diblock copolymer poly (styrene-b-4-vinyl pyridine) (PS-b-P4VP) as a structure-directing agent. Pure PS-b-P4VP films are printed under the same conditions for comparison. The micellization of the diblock copolymer in the solution, the film formation process of the printed thin films, the homogeneity of the dry films in the lateral and vertical direction as well as the morphological and compositional information of the calcined hybrid PS-b-P4VP/FeCl3 thin film are investigated.