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Title: Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling

Abstract

Passive daytime radiative cooling (PDRC) involves spontaneously cooling a surface by reflecting sunlight and radiating heat to the cold outer space. Current PDRC designs are promising alternatives to electrical cooling but are either inefficient or have limited applicability. We present a simple, inexpensive, and scalable phase inversion-based method for fabricating hierarchically porous poly(vinylidene fluoride-co-hexafluoropropene) [P(VdF-HFP)(HP)] coatings with excellent PDRC capability. High, substrate-independent hemispherical solar reflectances (0.96 +/- 0.03) and long-wave infrared emittances (0.97 +/- 0.02) allow for subambient temperature drops of similar to 6 degrees C and cooling powers of similar to 96 watts per square meter (Wm(-2)) under solar intensities of 890 and 750 Wm(-2), respectively. The performance equals or surpasses those of state-of-the-art PDRC designs, and the technique offers a paint-like simplicity.

Authors:
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Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1478138
Alternate Identifier(s):
OSTI ID: 1482561; OSTI ID: 1503287
Report Number(s):
BNL-209460-2018-JAAM
Journal ID: ISSN 0036-8075; /sci/362/6412/315.atom
Grant/Contract Number:  
AC02-06CH11357; SC0012704
Resource Type:
Journal Article: Published Article
Journal Name:
Science
Additional Journal Information:
Journal Name: Science Journal Volume: 362 Journal Issue: 6412; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Mandal, Jyotirmoy, Fu, Yanke, Overvig, Adam C., Jia, Mingxin, Sun, Kerui, Shi, Norman N., Zhou, Hua, Xiao, Xianghui, Yu, Nanfang, and Yang, Yuan. Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling. United States: N. p., 2018. Web. doi:10.1126/science.aat9513.
Mandal, Jyotirmoy, Fu, Yanke, Overvig, Adam C., Jia, Mingxin, Sun, Kerui, Shi, Norman N., Zhou, Hua, Xiao, Xianghui, Yu, Nanfang, & Yang, Yuan. Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling. United States. https://doi.org/10.1126/science.aat9513
Mandal, Jyotirmoy, Fu, Yanke, Overvig, Adam C., Jia, Mingxin, Sun, Kerui, Shi, Norman N., Zhou, Hua, Xiao, Xianghui, Yu, Nanfang, and Yang, Yuan. 2018. "Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling". United States. https://doi.org/10.1126/science.aat9513.
@article{osti_1478138,
title = {Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling},
author = {Mandal, Jyotirmoy and Fu, Yanke and Overvig, Adam C. and Jia, Mingxin and Sun, Kerui and Shi, Norman N. and Zhou, Hua and Xiao, Xianghui and Yu, Nanfang and Yang, Yuan},
abstractNote = {Passive daytime radiative cooling (PDRC) involves spontaneously cooling a surface by reflecting sunlight and radiating heat to the cold outer space. Current PDRC designs are promising alternatives to electrical cooling but are either inefficient or have limited applicability. We present a simple, inexpensive, and scalable phase inversion-based method for fabricating hierarchically porous poly(vinylidene fluoride-co-hexafluoropropene) [P(VdF-HFP)(HP)] coatings with excellent PDRC capability. High, substrate-independent hemispherical solar reflectances (0.96 +/- 0.03) and long-wave infrared emittances (0.97 +/- 0.02) allow for subambient temperature drops of similar to 6 degrees C and cooling powers of similar to 96 watts per square meter (Wm(-2)) under solar intensities of 890 and 750 Wm(-2), respectively. The performance equals or surpasses those of state-of-the-art PDRC designs, and the technique offers a paint-like simplicity.},
doi = {10.1126/science.aat9513},
url = {https://www.osti.gov/biblio/1478138}, journal = {Science},
issn = {0036-8075},
number = 6412,
volume = 362,
place = {United States},
year = {Thu Sep 27 00:00:00 EDT 2018},
month = {Thu Sep 27 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at https://doi.org/10.1126/science.aat9513

Citation Metrics:
Cited by: 702 works
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Works referenced in this record:

Vibrational spectrum of PVDF and its interpretation
journal, October 2004


Behavior of TiO 2 Released from Nano-TiO 2 -Containing Paint and Comparison to Pristine Nano-TiO 2
journal, May 2014


Angular distribution of diffusely transmitted light
journal, April 1996


Surface coatings for radiative cooling applications: Silicon dioxide and silicon nitride made by reactive rf-sputtering
journal, November 1985


Radiative cooling computed for model atmospheres
journal, January 1982


Global non-linear effect of temperature on economic production
journal, October 2015


Passive radiative cooling below ambient air temperature under direct sunlight
journal, November 2014


Frequency shifting and asymmetry in infrared bands of stressed polymers
journal, December 1983


A Subambient Open Roof Surface under the Mid-Summer Sun
journal, May 2015


FTIR studies of PEMA/PVdF-HFP blend polymer electrolyte system incorporated with LiCF3SO3 salt
journal, January 2012


Quantitative infrared methods for the measurement of crystallinity and its temperature dependence: polyethylene
journal, September 1989


Controlled pore evolution during phase inversion from the combinatorial non-solvent approach: application to battery separators
journal, January 2016


Surfaces for radiative cooling: Silicon monoxide films on aluminum
journal, January 1980


Understanding and guiding the phase inversion process for synthesis of solvent resistant nanofiltration membranes
journal, March 2015


Solar spectral optical properties of pigments—Part II: survey of common colorants
journal, December 2005


Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling
journal, February 2017


Molecular Vibrations of Three Crystal Forms of Poly(vinylidene fluoride)
journal, March 1975


Radiative cooling of TiO2 white paint
journal, January 1978


Radiative Heat Pumping from the Earth Using Surface Phonon Resonant Nanoparticles
journal, February 2010