Scalable colored Janus fabric scheme for dynamic thermal management
Sijie Pian,
Zhuning Wang,
Chengtao Lu,
Peixuan Wu,
Qikai Chen,
Xu Liu,
Yaoguang Ma
Affiliations
Sijie Pian
State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Intelligent Optics and Photonics Research Center, Jiaxing Research Institute, International Research Center for Advanced Photonics, ZJU–Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
Zhuning Wang
State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Intelligent Optics and Photonics Research Center, Jiaxing Research Institute, International Research Center for Advanced Photonics, ZJU–Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
Chengtao Lu
State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Intelligent Optics and Photonics Research Center, Jiaxing Research Institute, International Research Center for Advanced Photonics, ZJU–Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
Peixuan Wu
State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Intelligent Optics and Photonics Research Center, Jiaxing Research Institute, International Research Center for Advanced Photonics, ZJU–Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
Qikai Chen
State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Intelligent Optics and Photonics Research Center, Jiaxing Research Institute, International Research Center for Advanced Photonics, ZJU–Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
Xu Liu
State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Intelligent Optics and Photonics Research Center, Jiaxing Research Institute, International Research Center for Advanced Photonics, ZJU–Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China
Yaoguang Ma
State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Intelligent Optics and Photonics Research Center, Jiaxing Research Institute, International Research Center for Advanced Photonics, ZJU–Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China; Corresponding author
Summary: The art of passive thermal management lies in effectively mitigating heat stress by manipulating the optical spectra of target objects. However, a significant obstacle remains in finding a structure that can seamlessly adapt to diverse thermal environments. In response to this challenge, we posit that Janus fabrics have unique advantages for multi-scene applications when carefully engineered. A Janus fabric with an upper side exhibiting a 92% solar reflectivity and a 94% emissivity, along with a lower side possessing an infrared emissivity below 30% could enable energy savings at a large scale. It outperforms commercial products in terms of energy-saving efficiency under different climate conditions. Furthermore, the scalable manufacturing compatibility and outstanding performance make the Janus structure a promising avenue for diverse passive thermal management scenarios.
