Spatial and Temporal Modulation of Thermoelectric Metamaterials
Diffusionics(2024)
Abstract
AbstractIn this chapter, we delve into the exciting realm of emerging multiphysics metamaterials, which holds great potential for orchestrating intricate physical processes. Our focus lies in exploring the concept of spatially and spatiotemporally modulated thermoelectric metamaterials, aiming to achieve multifaceted control over the thermal and electric domains. To establish a solid theoretical foundation for spatially modulated thermoelectric metamaterials, we delve into decoupled transformation thermoelectrics, coupled transformation thermoelectrics, and nonlinear transformation thermoelectrics. These theories serve as the basis for achieving functional control over electric and thermal fields. Recognizing the limitations of single-functionality and the inherent immutability of conventional thermoelectric metamaterials, a novel concept emerges-that of spatiotemporal multiphysics metamaterials, which incorporates the temporal dimension. This transformative facet empowers each physical field with manifold functionalities and the ability to seamlessly transition between them. To realize this vision, we develop rotatable checkerboard structures with varying rotation times, material compositions, and geometric shapes. These structures facilitate flexible switching of thermal and electric functions, enabling capabilities such as cloaking, sensing, and concentrating. The outcomes of our research offer a promising spatiotemporal platform for realizing adaptive and intelligent manipulation of multiphysics fields. This advancement paves the way for innovative applications and opens up new horizons in the field of metamaterials.
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