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Passive radiative cooling has been extensively explored as a sustainable alternative to traditional cooling systems. However, relying solely on this cooling mode restricts their application in temperature-fluctuating environments and may cause overcooling on cold days. To address this challenge, researchers are increasingly developing dual-mode devices that integrate radiative cooling with solar heating, utilizing the Sun's continuous heat source for passive heating. In this perspective, we summarize the latest advancements in this field and highlight specific strategies for switchable dual-mode devices. These strategies generally fall into two categories: Janus design and all-in-one design. Finally, we discuss future challenges and opportunities in on-demand radiative cooling and solar heating, intending to advance this technology toward practical applications.
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http://dx.doi.org/10.1021/acs.langmuir.5c01532 | DOI Listing |
Adv Mater
September 2025
Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education, and International Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
Transmission-type radiative cooling textiles represent a vital strategy for personal thermal management. However, traditional preparation methods based on heat-induced phase separation face significant challenges regarding cost, environmental impact, and optical performance. Herein, a novel preparation method is devloped by blending mid-IR transparent solid styrene ethylene butylene styrene (SEBS) with solid polyethylene (PE), enabling the creation of pores through dissolving SEBS.
View Article and Find Full Text PDFJ Chem Phys
September 2025
Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-nishibiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, Japan.
Linear carbon cluster anions, such as C6-, have been considered to be promising candidate interstellar molecules. Recent experiments have demonstrated that in a collision-free vacuum environment, C6- exhibits fast radiative cooling from its highly vibrationally excited states through inverse internal conversion (IIC). Since IIC is driven by vibronic coupling, the understanding of vibronic structures of C6- is of theoretical significance.
View Article and Find Full Text PDFAdv Mater
September 2025
School of Architecture, Southeast University, Nanjing, 210096, China.
Buildings are increasingly being conceived as dynamic systems that interact with their surroundings to optimize energy performance and enhance occupant comfort. This evolution in architectural thinking draws inspiration from biological systems, where the building envelope functions like a thermally responsive "skin" that can autonomously adjust its optical and thermal properties in response to environmental temperature changes. Among the many approaches developed for smart building envelopes, passive thermoresponsive spectral modulation systems have attracted growing interest due to their structural simplicity and low energy demand.
View Article and Find Full Text PDFSci Total Environ
September 2025
European Commission, Joint Research Centre (JRC), Ispra, Italy. Electronic address:
Drought stress has profound impacts on ecosystems and societies, particularly in the context of climate change. Traditional drought indicators, which often rely on integrated water budget anomalies at various time scales, provide valuable insights but often fail to deliver clear, real-time assessments of vegetation stress. This study introduces the Cooling Efficiency Factor Index (CEFI), a novel metric purely derived from geostationary satellite observations, to detect vegetation drought stress by analyzing daytime surface warming anomalies.
View Article and Find Full Text PDFCarbohydr Polym
November 2025
Department of Food Science and Agricultural Chemistry, McGill University, Quebec H9X 3V9, Canada.
Passive daytime radiative cooling (PDRC) offers a sustainable solution to global energy challenges by dissipating heat without energy input. However, conventional PDRC materials face trade-offs between biodegradability, color integration, optical transparency, and mechanical robustness. Herein, a biomimetic, structurally colored PDRC film fabricated via evaporation-induced self-assembly of cellulose nanocrystals (CNCs), betaine, and polyvinyl alcohol was developed.
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