Electromagnetic Resonance in Organic Conductive Polymers

Plasmon resonance and all-dielectric electromagnetic resonance represent two types of electromagnetic resonance, often enabled by inorganic nanostructures. When electromagnetic resonance occurs, the nanostructure interacts strongly with incoming light, resulting in strong electric and magnetic responses. Plasmon resonance is generally supported by metals, degenerately doped semiconductors, nonstoichiometric semiconductors, and metal nitrides, while all-dielectric electromagnetic resonance is typically supported by high-refractive-index semiconductors and metal oxides. Conductive polymers have recently been emerging as a promising candidate for supporting electromagnetic resonance. Aside from their softness and flexibility, conductive polymers also possess tunable conductivities and dielectric functions, which can be controlled by external stimuli. In this Perspective, we provide a brief overview of the research progresses in electromagnetic resonance supported by organic conductive polymers. Both all-dielectric electromagnetic resonance and plasmon resonance will be discussed. We also present the summary and major challenges in the investigation of conductive polymers supporting strong electromagnetic resonance.