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Article Abstract
Passive radiative cooling functions by reflecting the solar spectrum and emitting infrared waves in broadband or selectively. However, cooling enclosed spaces that trap heat by greenhouse effect remains a challenge. We present a emitter (ET) consisting of an Ag-polydimethylsiloxane layer on micropatterned quartz substrate. The induced spoof surface plasmon polariton helps overcome inherent emissivity loss of the polymer and creates near-ideal selective and broadband emission on the separate sides. This design results in not only remarkable surface cooling when the ET is attached with either side facing outwards but also space cooling when used as an enclosure wall. Thus, the ET can passively mitigate the greenhouse effect in enclosures while offering surface cooling performance comparable to conventional radiative coolers.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7473666 | PMC |
| http://dx.doi.org/10.1126/sciadv.abb1906 | DOI Listing |
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