Journal ArticleDOI
Scalable dual-layer film with broadband infrared emission for sub-ambient daytime radiative cooling
Sheng Meng,Linshuang Long,Zuoxu Wu,Nicholas Denisuk,Yue Yang,Liping Wang,Feng Cao,Yonggang Zhu,Yonggang Zhu +8 more
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TLDR
In this article, a dual-layer film consisting of polyvinyl fluoride (PVF) layer and Ag coating is proposed to act as an efficient daytime radiative cooler with low solar absorption and broadband infrared emission.About:
This article is published in Solar Energy Materials and Solar Cells.The article was published on 2020-05-01. It has received 54 citations till now. The article focuses on the topics: Radiative cooling & Passive cooling.read more
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Review of radiative cooling materials: Performance evaluation and design approaches
Xinxian Yu,Jiaqi Chan,Chun Chen +2 more
TL;DR: In this paper, the authors gathered information on 55 radiative cooling materials reported in the literature according to their selection criteria and grouped them into four categories: multilayer structure, metamaterial, randomly distributed particle structure, and porous structure.
Journal ArticleDOI
Radiative cooling: Fundamental physics, atmospheric influences, materials and structural engineering, applications and beyond
TL;DR: In this paper, the authors provide guidance towards integration of radiative coolers with functional devices for both academic researchers and engineers in the fields of energy harvesting, fluidic cooling, energy efficient clothing, and architecture.
Journal ArticleDOI
Cross-Linked Porous Polymeric Coating without a Metal-Reflective Layer for Sub-Ambient Radiative Cooling.
TL;DR: In this article, a photo-initiated free-radical polymerization was used to produce a matte white polyvinylidene fluoride (PVDF) and polyurethane acrylate (PUA) matte white coating for passive daytime radiative cooling.
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High-Performance Daytime Radiative Cooler and Near-Ideal Selective Emitter Enabled by Transparent Sapphire Substrate.
TL;DR: In this paper, a transparent sapphire-substrate-based radiative coolers comprising a simple structure and selective emitter-like optical characteristics are proposed. And the authors show that the fabricated radiative cooling can reach temperature drops of ≈10°C in the daytime.
Journal ArticleDOI
Effective radiative cooling with ZrO2/PDMS reflective coating
TL;DR: In this paper, the influence of particle sizes and volume fractions and film thicknesses on radiative cooling were evaluated via Mie scatter theory combined with Monte Carlo ray-tracing method.
References
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Journal ArticleDOI
Optical Constants of the Noble Metals
P. B. Johnson,R. W. Christy +1 more
TL;DR: In this paper, the optical constants for the noble metals (copper, silver, and gold) from reflection and transmission measurements on vacuum-evaporated thin films at room temperature, in the spectral range 0.5-6.5 eV.
Book
Radiative heat transfer
TL;DR: In this article, the Monte Carlo method for thermal radiation was used to estimate the radiative properties of one-dimensional Gray Media, and the method of Spherical Harmonics (PN-Approximation) was used for the same purpose.
Journal ArticleDOI
Passive radiative cooling below ambient air temperature under direct sunlight
TL;DR: An integrated photonic solar reflector and thermal emitter consisting of seven layers of HfO2 and SiO2 that reflects 97 per cent of incident sunlight while emitting strongly and selectively in the atmospheric transparency window demonstrates that the cold darkness of the Universe can be used as a renewable thermodynamic resource, even during the hottest hours of the day.
Journal ArticleDOI
Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling
Yao Zhai,Yaoguang Ma,Sabrina N. David,Dongliang Zhao,Runnan Lou,Gang Tan,Ronggui Yang,Xiaobo Yin +7 more
TL;DR: A metamaterial composed of a polymer layer embedded with microspheres, backed with a thin layer of silver, which shows a noontime radiative cooling power of 93 watts per square meter under direct sunshine is constructed.
Book
Nano/Microscale Heat Transfer
TL;DR: This chapter discusses the properties of thermal properties of solids and the size effect, as well as some of the principles of statistical Thermodynamics and quantum theory.