Electrochemically Active Metasurfaces: Innovations in Heat Management

This lecture discusses the role of electrochemically active metasurfaces in managing multispectral radiative heat. The instructor explains how electrochemistry serves as a powerful tool for inducing significant changes in optical properties. By applying an electrical bias and utilizing counterions for charge neutrality, the metasurfaces can adjust carrier density and even trigger phase transformations in a controllable manner. This capability is essential for applications requiring tunability, scalability, and non-volatility. The lecture also highlights the advantages of metamaterials, which provide additional flexibility to enhance performance and achieve multifunctional control. Various examples and experimental results are presented, demonstrating the effectiveness of these technologies in applications such as dynamic thermal regulation and energy efficiency. The discussion includes insights into the mechanisms of electrochemical reactions and their implications for future innovations in materials science and engineering.