Regensburg 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 1: Organic Electronics and Photovoltaics 1
CPP 1.6: Vortrag
Montag, 5. September 2022, 11:00–11:15, H38
Revealing the formation kinetics of the active layer for non-fullerene organic solar cells — •Xinyu Jiang1, Suo Tu1, Manuel A. Reus1, Julija Reitenbach1, Christian L. Weindl1, Matthias Schwartzkopf2, Stephan V. Roth2, and Peter Müller-Buschbaum1 — 1Lehrstuhl für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany — 2DESY, Notkestraße 85, 22607 Hamburg
Bulk heterojunction (BHJ) organic solar cells have gained significant improvements in the past few years, however, traditional laboratory deposition methods like spin coating are limited to small-scale production. In addition, it is difficult to observe the structure formation process of the active layer during deposition, which is crucial for gaining a fundamental understanding. Encouragingly, the emergence of printing techniques and the development of in-situ observation technology open new windows for lager-area device manufacturing and inspection of the formation process of the printed active layer, respectively. In this work, we fabricate an active layer, which contains a donor polymer (PDTBT2T-FTBDT) and a non-fullerene acceptor (BTP-4F) with a slot-die coating. The structure formation of the polymer domains kinetics is followed in-situ during the printing process with GIWAXS and UV-Vis spectroscopy measurements, respectively. Thus, structure evolution is coupled with optical properties during the printing process, thereby providing an understanding of the drying of non-fullerene organic BHJ thin films.