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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 49: Poster Session II
CPP 49.46: Poster
Dienstag, 17. März 2020, 14:00–16:00, P1A
Donor-Acceptor Polymers with PDMS-Ur based cross-linkers: A Novel Hybrid Material for Stretchable Semiconductor Applications — •Florian Günther1, Ubirajara P. Rodrigues-Filho2, and Roberto M. Faria1 — 1Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, Brazil — 2Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, Brazil
The visions that we have for our future, especially the expectations we have on electronic devices, require the invention of new materials. In the past decades, organic semiconducting materials have been intensively studied since they show some advantages over bulk semiconductors. E.g., they offer the possibility to fabricate flexible devices. So far, however, flexibility has mainly been studied in terms of bendable and twistable thin films. The next stage on the road map towards higher functionality is therefore to focus on stretchability. Our work aims at combining the semiconducting properties of donor-acceptor polymers, especially those based on dithienyl-diketopyrrolopyrrole (TDPP), with the flexible properties of polydimethylsiloxane (PDMS). More specific, the TDPP-based DA backbones shall be crosslinked via PDMS by forming urethane (Ur) bonds between these two compounds. For this, the so-called Figovsky reaction can be used. The urethane bonds promise a higher chemically and mechanically stability due to additional hydrogen bonds. In this presentation, we are going to show our synthesis and fabrication strategies as well as our results on the semiconducting properties obtained so far.