from the conferences organized by TANGER Ltd.
Surface-enhanced Raman scattering (SERS) spectroscopy is a highly sensitive, important non-contact analytical technique valued for its sensitivity and ability to provide unique molecular fingerprints. Although traditional SERS platforms rely on plasmonic metal nanostructures, there is a growing interest in developing alternative, non-plasmonic SERS-active materials. Among them, conducting polymers, such as quaterthiophenes or thiophenes, are highly promising candidates due to their cost-effectiveness, flexibility, and ease of processing. This study explores the SERS performance of spin-coated and thermally cured poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) films and demonstrates that the SERS activity of PEDOT:PSS films may be further enhanced by placing a highly reflective silver layer beneath the PEDOT:PSS film, providing a simple yet effective strategy for signal enhancement.
Keywords: SERS substrates, PEDOT:PSS, conducting polymers© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.