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| DOI | 10.1021/acsnano.3c12244 |
| Bioinspired Polymer Films with Surface Ordered Pyramid Arrays and 3D Hierarchical Pores for Enhanced Passive Radiative Cooling | |
| 发表日期 | 2024 |
| ISSN | 1936-0851 |
| EISSN | 1936-086X |
| 英文摘要 | Passive radiative cooling (PRC) has been acknowledged to be an environmentally friendly cooling technique, and especially artificial photonic materials with manipulating light-matter interaction ability are more favorable for PRC. However, scalable production of radiative cooling materials with advanced biologically inspired structures, fascinating properties, and high throughput is still challenging. Herein, we reported a bioinspired design combining surface ordered pyramid arrays and internal three-dimensional hierarchical pores for highly efficient PRC based on mimicking natural photonic structures of the white beetle Cyphochilus' wings. The biological photonic film consisting of surface ordered pyramid arrays with a bottom side length of 4 mu m together with amounts of internal nano- and micropores was fabricated by using scalable phase separation and a quick hot-pressing process. Optimization of pore structures and surface-enhanced photonic arrays enables the bioinspired film to possess an average solar reflectance of similar to 98% and a high infrared emissivity of similar to 96%. A temperature drop of similar to 8.8 C-degrees below the ambient temperature is recorded in the daytime. Besides the notable PRC capability, the bioinspired film exhibits excellent flexibility, strong mechanical strength, and hydrophobicity; therefore, it can be applied in many complex outdoor scenarios. This work provides a highly efficient and mold replication-like route to develop highly efficient passive cooling devices. |
| 英文关键词 | passive radiative cooling; bioinspired materials; surface ordered arrays; porous scattering; thermal management |
| 语种 | 英语 |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:001203617500001 |
| 来源期刊 | ACS NANO
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/297279 |
| 作者单位 | Nanjing University |
| 推荐引用方式 GB/T 7714 | . Bioinspired Polymer Films with Surface Ordered Pyramid Arrays and 3D Hierarchical Pores for Enhanced Passive Radiative Cooling[J],2024. |
| APA | (2024).Bioinspired Polymer Films with Surface Ordered Pyramid Arrays and 3D Hierarchical Pores for Enhanced Passive Radiative Cooling.ACS NANO. |
| MLA | "Bioinspired Polymer Films with Surface Ordered Pyramid Arrays and 3D Hierarchical Pores for Enhanced Passive Radiative Cooling".ACS NANO (2024). |
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