| Issue |
EPJ Web Conf.
Volume 309, 2024
EOS Annual Meeting (EOSAM 2024)
|
|
|---|---|---|
| Article Number | 13008 | |
| Number of page(s) | 2 | |
| Section | Focused Sessions (FS) 3- Passive Radiative Cooling | |
| DOI | https://doi.org/10.1051/epjconf/202430913008 | |
| Published online | 31 October 2024 | |
https://doi.org/10.1051/epjconf/202430913008
Polymer photonic aegises as near-infrared reflectors
University of Genoa, Department of Chemistry and Industrial Chemistry, 16146 Genoa, Italy
* Corresponding author: andrea.lanfranchi@edu.unige.it
Published online: 31 October 2024
Year by year, thermal shielding has seen an increase in importance for reduction of energetic consumption in vehicles and buildings as a passive method of cooling opposed to traditional antiecologic air conditioning. In this work, we report on the design and fabrication of flexible, multilayer polymer photonic crystals films, namely aegises. Exploiting their peculiar optical properties, aegises are designed to act as selective reflectors for the near-infrared radiation, principal cause of radiative heating by sunlight, while keeping a relative transparency in the visible range. Different polymers are used as alternating building blocks, and the efficiency of the fabricated structures is assessed via thermal experiments, achieving efficiencies greater than 25% in heating reduction.
© The Authors, published by EDP Sciences, 2024
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