Sub-ambient full-color passive radiative cooling under sunlight based on efficient quantum-dot photoluminescence

Recent progress in organic-based radiative cooling materials: fabrication methods and thermal management properties

“…From an aesthetic view, under the premise of ensuring reflection, color coolers are also a hot issue in future research. 83,112,115,125 Presently, the practical application of radiative cooling materials and polymer films is still not widespread, which highlights the need for a more quantitative analysis of their energy saving potential, as well as the costs associated to their fabrication, installation, maintenance and disposal throughout their life cycle.…”

“…The temperature of green, yellow and red cooling films has reached 5.4–2.2 °C below ambient under sunlight. 125…”

Electrospun polymer nanocomposites for thermal management: a review

“…Recently, from an aesthetic point of view, Wang et al 72 designed a full-color PDRC film using the following four general steps. First, a CsPbX 3 perovskite quantum dot (X = Br or I, according to the different colors required) suspension was prepared by mixing the dissolved PbX 2 (150 °C) with cesium oleate solution (120 °C) and cooling it in an ice bath.…”

An Emerging Energy Technology: Self‐Uninterrupted Electricity Power Harvesting from the Sun and Cold Space

“…Taking advantage of the atmospheric transparent window (≈8-13 µm), a sky-facing object (radiative cooler) could maximize the selective emission of longwave radiation to the cold space and reduce its temperature below the ambient temperature. [24][25][26] Inspired by the self-heating/selfcooling characteristics of wavelength-selective absorber/emitter on Earth, we can harvest energy from the sun and cold space for a heat engine to produce electricity. Constrained by the first and second laws of thermodynamics, the maximal power and efficiency of an ideal heat engine established between the sun and the Earth are 1355 W m −2 and 85%, respectively (Figure 1c).…”