Redox-Tunable Conducting Polymer Plasmonics and Metasurfaces

We recently introduced conducting polymers as a new type of redox-tunable plasmonic materials,¹ opening for chemically and electrically controlled nanooptics and metasurfaces.^2-3 I will present the background to this emerging area of nanooptics and discuss recent results. As example of unique opportunitues enabled by conducting polymers, I will show how aligning the polymer chains by straining can induce redox-tunable in-plane hyperbolic permittivity and broadband chirooptics.^{4, 5} I will also discuss requirements, possibilities and limitations in extending this research area to materials beyond PEDOT-based systems.⁶<br/><br/><b>References:</b><br/>1. Conductive polymer nanoantennas for dynamic organic plasmonics<br/>S. Chen, E. S. H. Kang, M. S. Chaharsoughi, V. Stanishev, P. Kühne, H. Sun, C. Wang, M. Fahlman, S. Fabiano, V. Darakchieva and M. P. Jonsson<br/><b>Nature Nanotechnology </b>2020, 15, 35-40<br/><br/>2. Electrical Tuning of Plasmonic Conducting Polymer Nanoantennas<br/>A. Karki, G. Cincotti, S. Chen, C. Wang, V. Stanishev, V. Darakchieva, M. Fahlman and M. P. Jonsson<br/><b>Advanced Materials</b> 2022, 34, 13, 2107172<br/><br/>3. Doped Semiconducting Polymer Nanoantennas for Tunable Organic Plasmonics<br/>A. Karki, Y. Yamashita, S. Chen, T. Kurosawa, J. Takeya, V. Stanishev, V. Darakchieva, S. Watanabe and M. P. Jonsson<br/><b>Communications Materials</b> 2022, 3, 48<br/><br/>4. Tuneable anisotropic plasmonics with shape-symmetric conducting polymer nanoantennas<br/>Y. Duan, A. Rahmanudin, S. Chen, N. Kim, M. Mohammadi, K. Tybrandt and M. P. Jonsson<br/><b>Advanced Materials </b>2023, 35, 51, 2303949<br/><br/>5. Broadband chiroptics enabled by twist-stacked hyperbolic subwavelength films<br/>Y. Duan, S. Chen and M. P. Jonsson<br/><b>Submitted</b><br/><br/>6. Quasi-Resonances in Polypyrrole Nanoantennas<br/>W. Liu, S. Chen, C. Kuang, V. Stanishev, V. Darakchieva, and M. P. Jonsson<br/><b>Submitted</b>