Visibly Clear Radiative Cooling Metamaterials for Enhanced Thermal Management in Solar Cells and Windows

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 32(1)

Published: Oct. 4, 2021

Abstract The study of transparent daytime radiative cooling with no additional energy consumption is a promising area research. Its applications include solar cells and building automobile windows that are prone to heating issues. Ubiquitous necessitate the development metamaterials high mechanical flexibility in scalable manner while overcoming translucence. In this study, visibly clear flexible have been developed using newly designed optical modulator filled into randomly distributed silica aerogel microparticles silicone elastomer. effectively suppresses visible light scattering, thus enabling higher loading securing clarity. significant suppression rise temperature by metamaterial verified both indoor outdoor experiments. deployed can suppress under irradiation, thereby mitigating performance degradation issues suppressing air.

Language: Английский

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Recent Advances in Thermoregulatory Clothing: Materials, Mechanisms, and Perspectives

ACS Nano, Journal Year: 2023, Volume and Issue: 17(3), P. 1803 - 1830

Published: Feb. 2, 2023

Personal thermal management (PTM) is a promising approach for maintaining the comfort zone of human body while minimizing energy consumption indoor buildings. Recent studies have reported development numerous advanced textiles that enable PTM systems to regulate temperature and are comfortable wear. Herein, recent advancements in thermoregulatory clothing discussed. These advances focused on enhancing control heat dissipation between skin localized environment. We primarily summarize research controls pathways body, such as radiation- conductance-controlled clothing. Furthermore, adaptive dual-mode textiles, which can microclimate well responsive address both performance (warming and/or cooling) wearability Finally, we include discussion significant challenges perspectives this field, including large-scale production, smart bioinspired clothing, AI-assisted This comprehensive review aims further sustainably manufactured with superior outstanding practical applications.

Language: Английский

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Photonic structures in radiative cooling

Light Science & Applications, Journal Year: 2023, Volume and Issue: 12(1)

Published: June 1, 2023

Radiative cooling is a passive technology without any energy consumption, compared to conventional technologies that require power sources and dump waste heat into the surroundings. For decades, many radiative studies have been introduced but its applications are mostly restricted nighttime use only. Recently, emergence of photonic achieves daytime overcome performance limitations. example, broadband selective emissions in mid-IR high reflectance solar spectral range already demonstrated. This review article discusses fundamentals thermodynamic transfer motivates cooling. Several structures such as multilayer, periodical, random; derived from nature, associated design procedures were thoroughly discussed. Photonic integration with new functionality significantly enhances efficiency colored, transparent, switchable has developed. The commercial reducing loads vehicles, increasing generation cells, generating electricity, saving water, personal thermal regulation also summarized. Lastly, perspectives on emerging issues potential solution strategies

Language: Английский

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A Solution‐Processed Inorganic Emitter with High Spectral Selectivity for Efficient Subambient Radiative Cooling in Hot Humid Climates

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(12)

Published: Jan. 17, 2022

Daytime radiative cooling provides an eco-friendly solution to space with zero energy consumption. Despite significant advances, most state-of-the-art coolers show broadband infrared emission low spectral selectivity, which limits their temperatures, especially in hot humid regions. Here, all-inorganic narrowband emitter comprising a solution-derived SiOx Ny layer sandwiched between reflective substrate and self-assembly monolayer of SiO2 microspheres is reported. It shows high diffusive solar reflectance (96.4%) strong infrared-selective emittance (94.6%) superior selectivity (1.46). Remarkable subambient up 5 °C autumn 2.5 summer are achieved under humidity without any shading or convection cover at noontime subtropical coastal city, Hong Kong. Owing the hydrophobic structure, outstanding resistance ultraviolet water long-term durability tests. The scalable-solution-based fabrication renders this stable high-performance promising for large-scale deployment various climates.

Language: Английский

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Micro‐Nano Porous Structure for Efficient Daytime Radiative Sky Cooling

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(44)

Published: Aug. 19, 2022

Abstract With the aggravation of global warming and extreme weather, cooling demand has witnessed a continuous increase is expected to tenfold by 2050. Radiative sky (RSC) without any pollution energy consumption drawn worldwide attention in past few years. Large‐scale scalable porous materials have greatly advanced progress this technology. Herein, critical review on with goal advancing their commercial applications presented. The detailed design principles daytime radiative are first discussed clarify factors structures for great performance. What follows discussions from pore‐forming methods. Subsequently, recent promising particle‐embedding structures, mainly including white colorful coolers various applications, outlined. Additionally, some special highlighted further broaden RSC Last but not least, remaining open challenges insights presented advance commercialization progress.

Language: Английский

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