A dual-selective thermal emitter with enhanced subambient radiative cooling performance
Tsinghua University · Collaborative Innovation Center of Advanced Microstructures · +3 more institutions
Abstract
Radiative cooling is a zero-energy technology that enables subambient cooling by emitting heat into outer space (~3 K) through the atmospheric transparent windows. However, existing designs typically focus only on the main atmospheric transparent window (8-13 μm) and ignore another window (16-25 μm), under-exploiting their cooling potential. Here, we show a dual-selective radiative cooling design based on a scalable thermal emitter, which exhibits selective emission in both atmospheric transparent windows and reflection in the remaining mid-infrared and solar wavebands. As a result, the dual-selective thermal emitter exhibits an ultrahigh subambient cooling capacity (~9 °C) under strong sunlight, surpassing…
Citation impact
- FWCI
- 46.34
- Percentile
- 100%
- References
- 55
Authors
18Topics & keywords
- Common emitter
- Radiative cooling
- Dual (grammatical number)
- Radiative transfer
- Thermal radiation
- Thermal
- Materials science
- Optoelectronics