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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 36: Organic Electronics and Photovoltaics III
CPP 36.10: Talk
Thursday, March 21, 2024, 12:15–12:30, H 0110
Structure-function properties in a water soluble polymer via single-molecule spectroscopy — •Erik F. Woering1, Maria Duma1, Jane Kardula1,2, Ryan C. Chieci1,2, and Richard Hildner1 — 1University of Groningen, ZIAM, The Netherlands — 2University of Groningen, Stratingh Institute for Chemistry, The Netherlands
Conjugated polymers represent a promising class of versatile and easy to produce high-performance materials. Due to their (chemically) adjustable nature, they find use in bioelectronics or organic solar cells. However, the interplay of the polymers’ chemical structure of the backbone and of the side groups on optical and electronic properties remain largely unexplored due to their large conformational flexibility. Here, we perform temperature-dependent single-molecule photoluminescence (PL) spectroscopy on p(ProDOT-TetEster), a water-soluble polythiophene-derivative bearing two dimethyloctane-dioate side chains. In particular, we explore the influence of polarity of the surrounding environment through statistical analysis of spectral features upon embedding single chains into a PS, PMMA or PVA matrix. The granular analysis on the single-chain scale will be valuable for deriving structure-function relationships and ultimately for the design of optimized and specialized conjugated polymers.
Keywords: Photoluminescence Spectroscopy; Conjugated Polymers; Single Molecule Spectroscopy; Side-chain Engineering; Chain Conformation