A Review of Photonics‐Driven Thermal Management: Strategies for Efficient Energy Generation and Saving

ABSTRACT Across a broad spectrum, photonics facilitates thermal management by manipulating electromagnetic waves in energy devices, enhancing energy production and efficiency. The light–matter interaction should be explored not only from the perspective of their individual heating/cooling functions but also for their mutual utilization. Here, we review recent advancements in thermal management strategies from a photonic structures viewpoint, presenting the comprehensive strategy that spans heating and cooling. We focus on strategically designed photonics, considering material properties that interact with the long‐wave infrared spectrum at wavelengths from 8 to 13 μm, which are optimized for thermal emissions, and utilize the ultraviolet–visible–near infrared spectrum of the solar irradiance band for photothermal heating. Furthermore, exploring the potential for utilizing multiple wavelengths simultaneously forms the basis of a comprehensive photonics design strategy that leverages a broad spectrum of wavelength bands. This review evaluates the role of photonics in temperature control, thermoelectric generation, steam production, photocatalytic reactions, and radiative cooling, concluding with a discussion of the challenges and future directions in photonics for energy systems, highlighting the importance of a deep understanding of these interactions to maximize their potential. image