Enhanced radiative cooling with Janus optical properties for low-temperature space cooling

Abstract: Passive daytime radiative cooling that could provide sub-ambient cooling emerges as a promising technology to reduce household energy consumption. Nonetheless, prevailing studies are predominantly focused on surface cooling, often overlooking its adaptability to enclosed spaces with active cooling technologies. Here we present a multilayer radiative cooling film (J-MRC) with Janus optical properties in the mid-infrared region, consisting of the nanoporous polyethylene films, the polyethylene oxide film, and silver nanowires. The top side of the J-MRC functions as a conventional radiative cooling material to supply sub-ambient surface cooling, while the bottom side with low mid-infrared emissivity transfers limited heat via thermal radiation to the low-temperature enclosures. Our experiments validate that the J-MRC possesses an enhanced space cooling performance in comparison to the conventional radiative cooling film. This work provides a valuable design concept for radiative cooling materials, thereby expanding their practical scenarios and contributing to reduce the carbon emission.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Enhanced radiative cooling with Janus optical properties for low-temperature space cooling ; volume:13 ; number:5 ; year:2024 ; pages:629-637 ; extent:9 ; Nanophotonics ; 13, Heft 5 (2024), 629-637 (gesamt 9)

Contributors, Places and Time

• Creator: Yang, Meng ; Zeng, Yijun ; Du, Qingyuan ; Sun, Haoyang ; Yin, Yingying ; Yan, Xiantong ; Jiang, Mengnan ; Pan, Chin ; Sun, Dazhi ; Wang, Zuankai

Further information

• DOI: 10.1515/nanoph-2023-0641
• URN: urn:nbn:de:101:1-2024031214425028662650
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:57 AM CEST