Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.289
Publication date: 16th December 2024
The development of new transparent conducting polymers has gained significant interest due to their potential in various optoelectronic applications. We report new generation of highly transparent bisEDOT-based conducting polymers as an alternative to PEDOT/PSS. The synthetic approach is based on the in situ polymerization of bis-EDOT, a dimer of 3,4-ethylenedioxythiophene, inside polymethylmetacrylate (PMMA) via an oxidative polymerization reaction by Cu(ClO4)2. This approach yields a homogeneous transparent conducting polymer with enhanced electrical conductivity, mechanical stability, and excellent film-forming properties, offering significant advantages for high-performance applications in electronic and optoelectronic devices. The bis-EDOT-based conducting polymer can be processed in the form of inks for the formation of layers with thickness control, the possibility of tuning electrical conductivity, high transparency in the visible and near-infrared spectrum, and the possibility of adapting its formulation with various solvents, and additives to be fully compatible with perovskite in manufactured devices. The resulting conducting polymer films exhibit superior charge transport properties and long-term stability, making them ideal candidates for hole transport materials (HTMs) in perovskite-based photovoltaics. Moreover, the simplicity, scalability, and cost-effectiveness of this method make it highly suitable for large-scale production, with applications extending to flexible electronics, organic light-emitting diodes (OLEDs), sensors, and transparent conductive coatings. Overall, this in situ polymerization strategy provides a promising route for fabricating high-performance materials for advanced electronic and energy conversion technologies.
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