DataVXACS Energy LettersPaper
journal article·2022-05-13

On-Demand Solar and Thermal Radiation Management Based on Switchable Interwoven Surfaces

Yujie Ke, Yanbin Li, Lichen Wu, Shancheng Wang, Ronggui Yang, Jie Yin, Gang Tan, Yi Long

ACS Energy Letters· Volume 7· Issue 5
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Source abstract

Abstract

On-demand and selective regulation of the radiative cooling (long-wave infrared, LWIR) and solar heat gain (ultraviolet-, visible- and near-IR, UV–vis–NIR) of building facades is a grand challenge but essential to decrease energy usage in buildings. Here, we report a reconfigurable interwoven surface that can dynamically switch the overlapping sequence to achieve spectral selectivity and ultrabroadband modulations for windows, walls/roofs with decent spectral modulations, and energy-saving performance. The result surpasses the best reported passive radiative cooling smart windows with a more than doubled visible transmittance (Tlum = 0.50) and LWIR modulation (Δ εLWIR = 0.57). Our energy-saving samples outperform the commercial building materials across climate zones 2–6. This design principle is scalable and applicable for diverse materials, interwoven structures, and 2D-3D surfaces, which provide a strategy to give programmable heating/cooling modulations in various applications.
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Research context

OpenAlex topics: Thermal Radiation and Cooling Technologies · Urban Heat Island Mitigation · Transition Metal Oxide Nanomaterials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore

Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States

Department of Civil and Architectural Engineering, University of Wyoming, Laramie, Wyoming 82071, United States

State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Singapore-HUJ Alliance for Research and Enterprise (SHARE), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore

Sino-Singapore International Joint Research Institute (SSIJRI), Guangzhou 510000, China

Funding

Ministry of Education - Singapore · National Research Foundation Singapore · National Science Foundation · Sino-Singapore International Joint Research Institute

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