Regensburg 2022 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 12: Poster 1
CPP 12.74: Poster
Montag, 5. September 2022, 18:00–20:00, P1
Nanoscale alignment and chemical characterization of self-assembled all polymer donor-acceptor blends — •Dijo Moonnukandathil Joseph1,2, Juanzi Shi3, Wanzhu Cai4, Hardik Gadher1, Mohammad Soltaninzehad1,2, Ivan G. Scheblykin3, and Daniela Täuber1,2 — 1Leibniz Institute of Photonic Technology, Jena — 2Friedrich-Schiller University Jena, Germany — 3Lund University, Lund, Sweden — 4Jinan University, Guangzhou, China
Control of light polarization properties in self-assembled all-polymer donor-acceptor blends enables intrinsic polarization-sensitive applications in organic optoelectronics. In general, the polarization properties of thin conjugated polymer films are related to the polymer chain alignment in the film. Macroscopic domains of polymer alignment were demonstrated in thin films of a quinoxaline-thiophene copolymer (TQ1), which had been self-assembled via floating film transfer [1]. The nano-chemical characterization of thin polymer films can be achieved by nano-infrared spectroscopy (NanIR) methods [2]. We use 2D polarization imaging for characterizing the polarization properties of several thin polymer blend films fabricated via floating film transfer. In addition we investigate the chemical nanostructure of these films using mid-infrared photoinduced force microscopy. -- [1] Täuber et al. ACS Omega 2017, 2 , 32-40. [2] L. Xiao, Z.D. Schultz, Anal. Chem. 2018, 90 (1), 440-458.