Results 61 to 70 of about 669,328 (223)

Advancing Energy Efficiency in Smart Windows via Dual‐Responsive Electro‐Thermochromism

open access: yesAdvanced Science, EarlyView.
A durable and stable quasi‐solid‐state electro‐thermal dual‐responsive photothermal regulation device has been employed in advanced energy‐efficient smart windows. The devised device not only incorporates a thermochromic hydrogel characterized by high ionic conductivity, high optical transmittance, and a low LCST, but also comprises an electrochromic ...
Tongyu Chen   +10 more
wiley   +1 more source

From Chitosan to Chitin: Bio‐Inspired Thin Films for Passive Daytime Radiative Cooling

open access: yesAdvanced Science, 2023
Passive radiative daytime cooling is an emerging technology contributing to carbon‐neutral heat management. Optically engineered materials with distinct absorption and emission properties in the solar and mid‐infrared range are at the heart of this ...
Tobias Lauster   +6 more
doaj   +1 more source

Self‐Sustaining Hybrid Passive Cooler Enabling Highly Effective Thermal Management for Outdoor Electronics

open access: yesAdvanced Science, EarlyView.
An innovative hybrid passive cooler integrates a porous radiative coating and an atmospheric moisture‐harvesting hydrogel within a melamine sponge skeleton, synergizing radiative cooling, sensible‐heat absorption, and latent‐heat evaporation. It maintains an average 8.3°C sub‐ambient cooling under sunlight and a maximum ∼42.4°C drop under 2000 W·m−2 ...
Qingyuan Du   +6 more
wiley   +1 more source

Research Progress of Porous Radiative Cooling Films Based on Phase Separation Method

open access: yesNanomaterials
In recent years, against the backdrop of increasingly prominent global climate change and environmental issues, high-efficiency cooling technologies and energy-saving materials have become key research focuses.
Shicheng Lu   +7 more
doaj   +1 more source

Photonic-Structure Colored Radiative Coolers for Daytime Subambient Cooling

open access: yes, 2022
Daytime subambient radiative cooling provides a powerful strategy for realizing sustainable thermal management without any external energy consumption.
Rujun Ma (705550)   +4 more
core   +1 more source

Atmospheric Water Harvesting Through Polymer Hydrogel Sorbents: Materials Chemistry, Design Strategies, and Applications

open access: yesAdvanced Science, EarlyView.
Polymer‐based hydrogels have emerged as promising materials for atmospheric water harvesting (AWH) due to their high water affinity, tunable network structure, and excellent moisture adsorption‐desorption performance. Functional hydrogel systems enable efficient water capture and controlled release under low‐energy conditions, offering a sustainable ...
Swagata Datta   +6 more
wiley   +1 more source

A High-efficient Daytime Radiative Cooling Film

open access: yesInternational Photonics and OptoElectronics Meeting 2019 (OFDA, OEDI, ISST, PE, LST, TSA), 2019
The increase in cooling demand of diurnal human activities using mechanical systems to dissipate heat to the surroundings consumes large amounts of energy with excess heat production and CO2 emissions. The passive cooling process of the earth by infrared thermal radiation through the atmospheric transparency window (8~13 μm) inspires people to use the ...
Zhengui Zhou, Xin Wang, Jun Zhou, Bin Hu
openaire   +2 more sources

Bridging Horizontal to Vertical Radiative Cooling

open access: yesAdvanced Science, EarlyView.
Radiative cooling materials are mature but only work facing the sky, confining them to rooftops. Instead of developing new ones, this system bridges existing horizontal coolers to vertical windows using blades outside the glass. On an occupied urban building, windows stay up to 1.4°C below air temperature while preserving daylight, outward views, and ...
Xiangyu Meng, Gan Huang
wiley   +1 more source

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

open access: yesAdvanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang   +5 more
wiley   +1 more source

Performance limit of daytime radiative cooling in warm humid environment

open access: yesAIP Advances, 2018
Daytime radiative cooling potentially offers efficient passive cooling, but the performance is naturally limited by the environment, such as the ambient temperature and humidity.
Takahiro Suichi   +3 more
doaj   +1 more source

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