Abstract:

In recent years, the increasing energy consumption associated with thermal management has brought visible light transparent radiative cooling materials into focus due to their passive thermal regulation characteristics. Furthermore, their transparent appearance in the visible spectrum meets the demand for visible light in various production and daily life scenarios. Visible light transparent radiative cooling materials have developed into a diverse array of systems, and with dynamically tunable spectral properties significantly enhanced their adaptability to a wide range of application scenarios. This paper firstly introduced the principles of radiative cooling, illustrating the main differences between transparent light radiative cooling materials and traditional ones. It systematically categorized the material systems and regulation methods of transparent radiative cooling materials and further explored their applications in energy-efficient windows, photovoltaic power generation and greenhouse films. Finally, it summarized the challenges currently faced by the study in transparent radiative cooling materials, emphasizing the need to address issues such as multi-band compatible dynamic regulation, multifunctional integration and durability enhancement in future applications. This work provided guidance for the development of novel visible light transparent radiative cooling materials and the expansion of their application scenarios.

Key words: radiative cooling, transparency, polymers, composites, phase change

摘要：

近年来热控耗能不断增加，可见光透明辐射冷却材料因无源热控的特性受到了广泛关注，且其具有透明的外观，还可以满足生产生活中对可见光的需求。可见光透明辐射冷却材料发展至今种类丰富，通过动态可调的光谱特性可提高其在不同应用场景中的适应性。本文首先介绍了辐射冷却的原理，说明透明辐射冷却材料和传统辐射冷却材料的主要区别，归纳了透明辐射冷却材料的体系和调控方式，进一步介绍了透明辐射冷却材料在节能窗、光伏发电和温室大棚等领域的应用。最后，总结了当前透明辐射冷却材料研究面临的挑战，提出了在未来的应用中要解决多波段兼容动态调控、多功能集成以及耐久性提升等问题，为未来开发新可见光透明辐射冷却材料、扩展其应用场景提供了方向。

关键词: 辐射冷却, 透明, 聚合物, 复合材料, 相变