Regensburg 2019 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Poster Session III

CPP 37.40: Poster

Mittwoch, 3. April 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.