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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 37: Poster Session III
CPP 37.40: Poster
Wednesday, April 3, 2019, 11:00–13:00, Poster B1
Following the morphology formation of printed non-fullerene active layer for solar cells — •Xinyu Jiang1, Sebastian Grott1, Tommaso Riccitelli1, Volker Körstgens1, Kerstin Wienhold1, Matthias Schwartzkopf2, Stephan V. Roth3, Wei Cao1, Shanshan Yin1, Lin Song1, and Peter Müller-Buschbaum1 — 1TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching — 2DESY, Notkestr. 85, 22607 Hamburg — 3KTH, Department of Fibre and Polymer Technology, SE-100 44 Stockholm, Sweden
Bulk heterojunction (BHJ) organic solar cells have gained significant improvements via novel organic synthesis methods and optimized fabrication routes, especially with respect to their potential roll-to-roll processing for large-area device manufacturing. Printing techniques allow for up-scaling to industrial-oriented scale which is not the case for laboratory deposition techniques like spin coating. In the present work, we fabricated an active layer which contains a low band gap donor polymer(pffBT4T-2DT) with a non-fullerene acceptor(EH-IDTBR) for solar cells by using a slot-die printing technique. To observe the structure formation of polymer domains at a larger length scale, grazing incidence small-angle X-ray scattering (GISAXS) was used in-situ during the printing process. BHJ solar cells based on printed active layer film were fabricated, which showcases the suitability of the printing technique.