Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.420
Publication date: 16th December 2024
Conjugated polymers (CPs) have garnered significant attention in the fields of photodetectors[1], [2] and photoacoustic due to their tunable electronic properties, ease of processing, and potential for integration with flexible devices. Among these, shortwave infrared (SWIR) conjugated polymers offer a promising avenue for advanced photodetection and imaging applications, thanks to their ability to absorb and emit light in the 1–2 µm wavelength range, which is less susceptible to scattering and absorption by biological tissues compared to visible and near-infrared light. This feature enhances their suitability for deep tissue imaging, as well as for high-performance photodetectors with improved signal-to-noise ratios. In this work, recent advancements in the design and synthesis of new SWIR-responsive conjugated polymers, based on thiadiazolequinoxaline units as electron withdrawing units and various building blocks as electron donating segments will be presented including the incorporation of optimized π-conjugation and side-chain engineering that have led to significant improvements in their absorption, charge transport, and photodetection efficiency. Additionally, their biocompatibility and ease of functionalization open new possibilities for non-invasive bioimaging through photoacoustic application, enabling real-time monitoring of cellular processes and disease progression.
We would like to thank the Helmholtz European partnering program for the cooperation between German Cancer Research Center (DKFZ) and National Hellenic Research Foundation (NHRF) to build the Athens Comprehensive Cancer Center (ACCC) for the financial support. Moreover, the research project was supported by the Hellenic Foundation for Research and Innovation (H.F.R.I.) under the “2nd Call for H.F.R.I. Research Projects to support Faculty Members & Researchers” (Project Number: 4697)
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