Acrylic membrane doped with Al2O3 nanoparticle resonators for zero-energy consuming radiative cooling

Yuting Liu; Soomin Son; Dongwoo Chae; Pil Hoon Jung; Heon Lee

doi:10.1016/j.solmat.2020.110561

Acrylic membrane doped with Al₂O₃ nanoparticle resonators for zero-energy consuming radiative cooling

Yuting Liu, Soomin Son, Dongwoo Chae, Pil Hoon Jung, Heon Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

78 Citations (Scopus)

Abstract

Passive daytime radiative cooling plays a significant role in various cooling operations, which helps reducing electricity consumption and decreasing electricity demand. This work presents a new double-layered radiative cooling structure composed of a transparent dipentaerythritol penta-hexa-acrylate (DPHA) top layer, modified using Al₂O₃ nanoparticles (NPs) as resonators, and a metallic Ag bottom layer (DPHA@Al₂O₃ NPs/Ag). The DPHA@Al₂O₃ NPs layer is prepared through a fast photopolymerization process. The prepared DPHA@Al₂O₃ NPs/Ag system exhibits a solar reflectivity of 0.9465 and long-wave infrared (the so-called atmospheric transparency window) emissivity of 0.9163. The computed radiative cooling power at 27 °C can reach up to 106.43 W m⁻². A subambient temperature drop of 10.35 °C is measured from 13:00 to 16:00 p.m. in Seoul, Korea, when using the proposed material as radiative cooler. Since this structure can be applied on flexible substrate, this has far-reaching implications for future applications in wearable devices.

Original language	English
Article number	110561
Journal	Solar Energy Materials and Solar Cells
Volume	213
DOIs	https://doi.org/10.1016/j.solmat.2020.110561
Publication status	Published - 2020 Aug 15

Bibliographical note

Funding Information:
This research was supported by Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT ( NRF-2018M3D1A1058972 ) and the Technology Innovation Program ( N0002310 ) funded by the Ministry of Trade, Industry & Energy ( MOTIE , Korea).

Funding Information:
This research was supported by Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (NRF-2018M3D1A1058972) and the Technology Innovation Program (N0002310) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea).

Publisher Copyright:
© 2020

Keywords

Nanoparticle resonators
Passive daytime radiative cooling
Photopolymerization
Subambient temperature drop
Thermal stability

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.solmat.2020.110561

Cite this

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title = "Acrylic membrane doped with Al2O3 nanoparticle resonators for zero-energy consuming radiative cooling",

abstract = "Passive daytime radiative cooling plays a significant role in various cooling operations, which helps reducing electricity consumption and decreasing electricity demand. This work presents a new double-layered radiative cooling structure composed of a transparent dipentaerythritol penta-hexa-acrylate (DPHA) top layer, modified using Al2O3 nanoparticles (NPs) as resonators, and a metallic Ag bottom layer (DPHA@Al2O3 NPs/Ag). The DPHA@Al2O3 NPs layer is prepared through a fast photopolymerization process. The prepared DPHA@Al2O3 NPs/Ag system exhibits a solar reflectivity of 0.9465 and long-wave infrared (the so-called atmospheric transparency window) emissivity of 0.9163. The computed radiative cooling power at 27 °C can reach up to 106.43 W m−2. A subambient temperature drop of 10.35 °C is measured from 13:00 to 16:00 p.m. in Seoul, Korea, when using the proposed material as radiative cooler. Since this structure can be applied on flexible substrate, this has far-reaching implications for future applications in wearable devices.",

keywords = "Nanoparticle resonators, Passive daytime radiative cooling, Photopolymerization, Subambient temperature drop, Thermal stability",

author = "Yuting Liu and Soomin Son and Dongwoo Chae and Jung, {Pil Hoon} and Heon Lee",

note = "Funding Information: This research was supported by Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT ( NRF-2018M3D1A1058972 ) and the Technology Innovation Program ( N0002310 ) funded by the Ministry of Trade, Industry & Energy ( MOTIE , Korea). Funding Information: This research was supported by Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (NRF-2018M3D1A1058972) and the Technology Innovation Program (N0002310) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea). Publisher Copyright: {\textcopyright} 2020",

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AU - Son, Soomin

AU - Chae, Dongwoo

AU - Jung, Pil Hoon

AU - Lee, Heon

N1 - Funding Information: This research was supported by Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT ( NRF-2018M3D1A1058972 ) and the Technology Innovation Program ( N0002310 ) funded by the Ministry of Trade, Industry & Energy ( MOTIE , Korea). Funding Information: This research was supported by Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (NRF-2018M3D1A1058972) and the Technology Innovation Program (N0002310) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea). Publisher Copyright: © 2020

PY - 2020/8/15

Y1 - 2020/8/15

N2 - Passive daytime radiative cooling plays a significant role in various cooling operations, which helps reducing electricity consumption and decreasing electricity demand. This work presents a new double-layered radiative cooling structure composed of a transparent dipentaerythritol penta-hexa-acrylate (DPHA) top layer, modified using Al2O3 nanoparticles (NPs) as resonators, and a metallic Ag bottom layer (DPHA@Al2O3 NPs/Ag). The DPHA@Al2O3 NPs layer is prepared through a fast photopolymerization process. The prepared DPHA@Al2O3 NPs/Ag system exhibits a solar reflectivity of 0.9465 and long-wave infrared (the so-called atmospheric transparency window) emissivity of 0.9163. The computed radiative cooling power at 27 °C can reach up to 106.43 W m−2. A subambient temperature drop of 10.35 °C is measured from 13:00 to 16:00 p.m. in Seoul, Korea, when using the proposed material as radiative cooler. Since this structure can be applied on flexible substrate, this has far-reaching implications for future applications in wearable devices.

AB - Passive daytime radiative cooling plays a significant role in various cooling operations, which helps reducing electricity consumption and decreasing electricity demand. This work presents a new double-layered radiative cooling structure composed of a transparent dipentaerythritol penta-hexa-acrylate (DPHA) top layer, modified using Al2O3 nanoparticles (NPs) as resonators, and a metallic Ag bottom layer (DPHA@Al2O3 NPs/Ag). The DPHA@Al2O3 NPs layer is prepared through a fast photopolymerization process. The prepared DPHA@Al2O3 NPs/Ag system exhibits a solar reflectivity of 0.9465 and long-wave infrared (the so-called atmospheric transparency window) emissivity of 0.9163. The computed radiative cooling power at 27 °C can reach up to 106.43 W m−2. A subambient temperature drop of 10.35 °C is measured from 13:00 to 16:00 p.m. in Seoul, Korea, when using the proposed material as radiative cooler. Since this structure can be applied on flexible substrate, this has far-reaching implications for future applications in wearable devices.

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