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Passive daytime radiative cooling (PDRC) provides an energy-free approach to suppress surface temperatures by reflecting solar irradiation while emitting thermal radiation through the mid-infrared atmospheric window. Despite rapid progress…

Radiative cooling is a passive cooling technology by reflecting sunlight and emitting radiation in the atmospheric sky window. Although highly desired, full daytime sub-ambient radiative cooling in commercial-like single-layer…

Applied Physics · Physics 2020-11-06 Xiangyu Li , Joseph Peoples , Zhifeng Huang , Zixuan Zhao , Jun Qiu , Xiulin Ruan

Daytime radiative cooling has attracted considerable attention recently due to its tremendous potential for passively exploiting the coldness of deep-sky as clean and renewable energy. Many advanced materials with novel photonic…

The exponential growth in population and the increasing global temperature trickles down to an explosive demand in cooling and refrigeration. The vicious cycle of carbon footprint generation by these cooling devices can be broken by a…

Applied Physics · Physics 2022-02-22 Karthik Sasihithlu , Sreerag Sundaram , Bhrigu Rishi Mishra , Nithin Jo Varghese

We propose in this article a method to generate radiative coolers which are reflective in the solar spectrum and emissive in the transparency window of the atmosphere (8-13 $\mu$m). We choose an approach combining thermal control capacity…

Applied Physics · Physics 2018-02-07 Armande Hervé , Jeremie Drevillon , Younes Ezzahri , Karl Joulain

Passive radiative cooling involves a net radiative heat loss into the cold outer space through the atmospheric transmission windows. Due to its passive nature and net cooling effect, it is a promising alternative or complement to electrical…

Daytime radiative cooling is a promising passive cooling technology for combating global warming. Existing daytime radiative coolers usually show whitish colors due to their broadband high solar reflectivity, which severely impedes…

Optics · Physics 2022-12-05 Shenghao Jin , Ming Xiao , Wenbin Zhang , Boxiang Wang , Changying Zhao

Radiative cooling is a passive cooling technology that offers great promises to reduce space cooling cost, combat the urban island effect and alleviate the global warming. To achieve passive daytime radiative cooling, current…

Applied Physics · Physics 2020-11-03 Xiangyu Li , Joseph Peoples , Peiyan Yao , Xiulin Ruan

Deploying fibrous membranes for passive daytime radiative cooling (PDRC) on large and irregular surfaces is highly desirable but remains challenging, owing to the slow deposition rates and the need for electrically conductive substrates in…

Terrestrial radiative cooling is an intriguing way to mitigate the accelerating cooling demands in the residential and commercial sectors by offering zero-energy cooling. However, the ultra-white or mirror-like appearance of radiative…

Applied Physics · Physics 2022-02-16 Suwan Jeon , Soomin Son , Seokhwan Min , Hyunjin Park , Heon Lee , Jonghwa Shin

Radiative cooling is a passive cooling strategy with zero consumption of electricity. Although this technology can work well during optimal atmospheric conditions at nighttime, it is essential to achieve efficient radiative cooling during…

A longstanding challenge in personal thermal management has been transitioning from static, appearance-limited passive radiative cooling (PDRC) materials to systems that are both dynamically adaptive and visually versatile. The central…

Through passively emitting excess heat to the outer space, radiative cooling has been demonstrated as an efficient way for energy saving applications. Selective surface with unity emittance only within the atmospheric window as well as zero…

Applied Physics · Physics 2019-08-06 Yue Yang , Linshuang Long , Sheng Meng , Nicholas Denisuk , Liping Wang , Yonggang Zhu

Recent developments in radiative cooling technologies have primarily focused on affordable paint coatings that are easy to fabricate and deploy. Using a systematic approach to obtain optimal parameters, a radiative cooling (RC) paint…

Applied Physics · Physics 2024-01-23 Bhrigu Rishi Mishra , Sreerag Sundaram , Karthik Sasihithlu

Passive radiative cooling drawing the heat energy of objects to the cold outer space through the atmospheric transparent window (8 um - 13 um) is significant for reducing the energy consumption of buildings. Daytime and nighttime radiative…

Applied Physics · Physics 2023-11-01 Xiaojie Liu , Yanpei Tian , Fangqi Chen , Alok Ghanekar , Mauro Antezza , Yi Zheng

A galvanic displacement reaction-based, room-temperature "dip-and-dry" technique is demonstrated for fabricating selectively solar-absorbing plasmonic nanostructure-coated foils (PNFs). The technique, which allows for facile tuning of the…

The radiative cooling of objects during daytime under direct sunlight has recently been shown to be significantly enhanced by utilizing nanophotonic coatings. Multilayer thin film stacks, 2D photonic crystals, etc. as coating structures…

Day-and-night radiative sky cooling has emerged as a potential alternative to conventional cooling technologies such as refrigeration-based air conditioning and evaporative wet cooling. Both radiative cooling and evaporative cooling can…

Applied Physics · Physics 2021-12-14 Ablimit Aili , Xiaobo Yin , Ronggui Yang

Materials with both low absorption of incoming solar radiation and high emittance in mid-infrared band can be applied for daytime radiative cooling. Current state-of-the-art materials for passive radiative cooling often utilize a…

Applied Physics · Physics 2021-02-26 Saichao Dang , Jingbo Xiang , Hongxin Yao , Fan Yang , Hong Ye

The regulation of temperature at the macro and microscale is a major energy-consuming process of humankind. Modern cooling systems account for 15% of the global energy consumption and are responsible for 10% of greenhouse gas emissions. Due…

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