Results 41 to 50 of about 669,328 (223)

Geopolymer‐based sub‐ambient daytime radiative cooling coating

open access: yesEcoMat, 2023
Sub‐ambient daytime radiative cooling coating (SDRCC) is an appealing thermal management technology with great potential for alleviating the global warming and urban heat island effect.
Ning Yang   +4 more
doaj   +1 more source

Specific Position of Halogen in Crystalline TADF Scintillators Enables Efficient Triplet Harvesting Through Vibrational Modulation of Spin–Orbit Coupling

open access: yesAdvanced Materials, EarlyView.
Specific ortho‐halogenation transforms crystalline TADF emitters into efficient organic scintillators. Fluorine reduces the effective singlet–triplet separation, while chlorine combines near‐degenerate excited states with vibrational modulation of spin–orbit coupling.
Illia E. Serdiuk   +8 more
wiley   +1 more source

Experimental study on the solar heating and night sky radiative cooling properties of biochar

open access: yesCase Studies in Thermal Engineering
Daytime solar heating and nighttime radiative cooling are of great significance to global energy conservation and carbon neutrality because of their low cost, zero energy consumption and environmentally friendly characteristics.
Haiwei Xie   +4 more
doaj   +1 more source

Cooling Coating for Buildings Based on the Daytime Radiative Cooling Technology

open access: yesJournal of Physics: Conference Series, 2023
Abstract In order to investigate the cooling effect of the radiative cooling material in the form of coating applied to buildings, a fiber-reinforced calcium silicate plate covered with radiative cooling coating was prepared on the basis of solving the bonding strength of coating in the research.
Yizhuo An   +3 more
openaire   +1 more source

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

open access: yesAdvanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski   +5 more
wiley   +1 more source

Current Status and Future Perspectives of Radiative Sky Cooling

open access: yesZhileng xuebao, 2022
Radiative sky cooling cools an object on the Earth’s surface by emitting thermal radiation through the atmospheric window to the cold universe. As a passive technique to reduce cooling energy requirements without power input, radiative cooling provides a
Guo Chenyue   +5 more
doaj  

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

open access: yesAdvanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu   +8 more
wiley   +1 more source

Metamaterial-Based Radiative Cooling: Towards Energy-Free All-Day Cooling

open access: yesEnergies, 2018
In the light of the ever increasing dangers of global warming, the efforts to reduce energy consumption by radiative cooling techniques have been designed, but are inefficient under strong sunlight during the daytime. With the advent of metamaterials and
Byoungsu Ko   +3 more
doaj   +1 more source

Selectively emmisive fluoropolymer film for passive daytime radiative cooling

open access: yes, 2022
Passive daytime radiative cooling is an attractive method to reduce overheating and the heat island effect, thus addressing the global warming effect. This technology does not require any input energy, noise, vibrations, and polluting gas to produce sub ...
Rho Junsuk   +7 more
core   +1 more source

Iridescent Daytime Radiative Cooling with No Absorption Peaks in the Visible Range

open access: yesSmall, 2022
AbstractCoatings for passive radiative cooling applications must be highly reflected in the solar spectrum, and thus can hardly support any coloration without losing their functionality. In this work, a colorful daytime radiative cooling surface based on structural coloration is reported.
Ding, Zhenmin   +12 more
openaire   +2 more sources

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