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Emerging Materials and Strategies for Passive Daytime Radiative Cooling
Wei Gao1,2,3, Yongping Chen1,2
1Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China.
Passive daytime radiative cooling (PDRC) offers a zero-energy solution for heat mitigation and carbon neutrality. This review explores PDRC materials, strategies, and applications, addressing challenges for future high-efficiency devices.
Area of Science:
- Materials Science
- Thermodynamics
- Sustainable Energy
Background:
- Growing demand for energy saving and heat mitigation.
- Urgent need for carbon neutrality driving zero-energy cooling solutions.
- Passive daytime radiative cooling (PDRC) emerges as a promising technique.
Purpose of the Study:
- Review emerging materials and strategies for PDRC devices.
- Examine fundamental physics and thermodynamic concepts of PDRC.
- Discuss challenges and future directions for PDRC.
Main Methods:
- Review of PDRC devices based on implementation mechanisms and material properties.
- Analysis of strategies for performance enhancement and functionalization.
- Exploration of potential applications and next-generation PDRC design.
Main Results:
- PDRC directly dissipates heat to outer space, offering an alternative to conventional cooling.
- Significant progress in PDRC mechanisms, materials, and applications noted.
- Identified challenges in PDRC functionalization, durability, and commercialization.
Conclusions:
- PDRC is a potent approach for energy crisis and environmental challenges.
- Further research into advanced materials and rational strategies is crucial.
- PDRC holds potential for widespread applications in various fields.
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