Scalable colored sub-ambient radiative coolers based on a polymer-Tamm photonic structure
文献类型：预印本
| 作者 | Huang, Tianzhe3,5; Chen, Qixiang4; Huang, Jinhua5; Lu, Yuehui5; Xu, Hua4; Zhao, Meng2; Xu, Yao1 ; Song, Weijie5
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| 英文摘要 | Daytime radiative coolers cool objects below the air temperature without any electricity input, while most of them are limited by a silvery or whitish appearance. Colored daytime radiative coolers (CDRCs) with diverse colors, scalable manufacture, and sub-ambient cooling have not been achieved. We introduce a polymer-Tamm photonic structure to enable a high infrared emittance and an engineered absorbed solar irradiance, governed by the quality factor (Q-factor). We theoretically determine the theoretical thresholds for sub-ambient cooling through yellow, magenta, and cyan CDRCs. We experimentally fabricate and observe a temperature drop of 2.6-8.8 °C on average during daytime and 4.0-4.4 °C during nighttime. Furthermore, we demonstrate a scalable-manufactured magenta CDRC with a width of 60 cm and a length of 500 cm by a roll-to-roll deposition technique. This work provides guidelines for large-scale CDRCs and offers unprecedented opportunities for potential applications with energy-saving, aesthetic, and visual comfort demands. © 2022, CC BY. |
| 出处 | arXiv |
| 出版者 | arXiv |
| ISSN号 | 23318422 |
| 发表日期 | 2022-07-22 |
| 语种 | 英语 |
| 产权排序 | 5 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/96113]  |
| 专题 | 先进光学元件试制中心 |
| 作者单位 | 1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'An; 710119, China 2.Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, Suzhou University of Science and Technology, Suzhou; 215009, China; 3.Nano Science and Technology Institute, University of Science and Technology of China, Suzhou; 215123, China; 4.School of Physical Science and Technology, Ningbo University, Ningbo; 315211, China; 5.Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo; 315201, China; |
| 推荐引用方式 GB/T 7714 | Huang, Tianzhe,Chen, Qixiang,Huang, Jinhua,et al. Scalable colored sub-ambient radiative coolers based on a polymer-Tamm photonic structure. 2022. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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