| 纳米光学辐射传热:从热辐射增强理论到辐射制冷应用 |
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| 引用本文： | 刘扬,潘登,陈文,王文强,沈昊,徐红星. 纳米光学辐射传热:从热辐射增强理论到辐射制冷应用[J]. 物理学报, 2020, 0(3): 1-18 |
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| 作者姓名： | 刘扬 潘登 陈文 王文强 沈昊 徐红星 |
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| 作者单位： | 武汉大学物理科学与技术学院;武汉大学高等研究院;巴塞罗那科技与技术学院;西安交通大学理学院 |
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| 基金项目： | 国家自然科学基金(批准号:91850207,11674256);国家重点基础研究发展计划(批准号:2015CB932400);国家重点研发计划(批准号:2017YFA0205802)资助的课题~~ |
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| 摘 要： | 热辐射作为一种无处不在的物理现象,对于科学研究和工程应用都具有重要意义.传统上对热辐射的理解主要是基于普朗克定律,它描述了物体通过辐射交换能量的能力.而近年来的研究表明,由于微纳光学材料在尺寸上远小于热辐射峰值波长,它们的热辐射性质往往很大程度上有别于传统黑体辐射理论所描述的宏观物体.更重要的是,微纳光学材料的热辐射性质可以通过改变它们的几何尺寸和微观构型进行定量的优化设计与精确调控.纳米光学材料与辐射制冷效应的结合,给热辐射效应在能源和环境等相关领域的应用提供了极具前景的应用价值.本文首先从热辐射的基本原理和规律出发,介绍纳米结构热辐射增强的发展进程和最新进展,包括二维材料间的近场热辐射机理以及尺寸效应导致的远场热辐射增强;其次,介绍了近年来纳米光学材料在辐射制冷应用中的重大进展,包括可以实现高效日间辐射制冷的各种纳米光学材料设计;最后,进一步介绍了日间辐射制冷的各种实际应用,包括建筑物制冷、冷凝水收集、舒适衣物与太阳能电池降温等.此外,展望了纳米光学材料的辐射制冷技术在推动荒漠生态环境的治理与改造方面的广阔未来.
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| 关 键 词： | 纳米光学 辐射制冷 近场增强 冷凝水 |
Radiative heat transfer in nanophotonics: From thermal radiation enhancement theory to radiative cooling applications |
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| Liu Yang,Pan Deng,Chen Wen,Wang Wen-Qiang,Shen Hao,Xu Hong-Xing. Radiative heat transfer in nanophotonics: From thermal radiation enhancement theory to radiative cooling applications[J]. Acta Physica Sinica, 2020, 0(3): 1-18 |
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| Authors: | Liu Yang Pan Deng Chen Wen Wang Wen-Qiang Shen Hao Xu Hong-Xing |
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| Affiliation: | (School of Physics and Technology,Wuhan University,Wuhan 430072,China;The Institute for Advanced Studies,Wuhan University,Wuhan 430072,China;ICFO-Institut de Ciencies Fotoniques,The Barcelona Institute of Science and Technology,Barcelona 08860,Spain;School of Science,Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | Thermal radiation,as a ubiquitous physical phenomenon,plays an important role in various research fields of science and engineering.Traditional understanding of thermal radiation mainly relies on Planck’s law,which describes the energy exchanging efficiency of entire thermal radiation process.However,recent studies indicated that comparing with the macroscopic object obeying Planck’s law,the thermal radiation in nanophotonic structures is obviously abnormal.This is due to the fact that the nanostructures’featured size or neighboring space are much smaller than the thermal wavelength.It is important to notice that by well designing the material,size,and structure pattern,the thermal radiation is tunable and controllable.Furthermore,the nanophotonic structures enabling the radiative cooling effects promise to possess the tremendous applications including energy,ecology,etc.In this review paper,firstly,we briefly describe the fundamental theory of thermal radiation,as well as the history and latest progress,such as,enhanced radiative heat transfer,the near-field radiation in two-dimensional materials,and the overall far-field enhancement.Secondly,we focus on the newly available daytime radiative cooling system,which is based on metamaterials or desired nanophotonic structures,pursuing the best cooling performances.Finally,we detail the checklists of remarkable applications,ranging from building cooling and dew collection to solar cell cooling.In addition,we also point out the broad future of radiation cooling technology of nanometer optical materials in promoting the management and transformation of desert ecological environment. |
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| Keywords: | nanophotonics radiative cooling near-field enhancement condensated water |
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