Scalable thermochromic smart windows with passive radiative cooling regulation

Shancheng Wang; Tengyao Jiang; Yun Meng; Ronggui Yang; Gang Tan; Yi Long

doi:10.1126/science.abg0291

Scalable thermochromic smart windows with passive radiative cooling regulation

Shancheng Wang, Tengyao Jiang, Yun Meng, Ronggui Yang^*, Gang Tan^*, Yi Long^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

764 Citations (Scopus)

Abstract

Radiative cooling materials spontaneously radiate long-wave infrared (LWIR) to the cold outer space, providing cooling power that is preferred in hot seasons. Radiative cooling has been widely explored for walls and roofs but rarely for windows, which are one of the least energy-efficient parts of buildings. We fabricated scalable smart windows using a solution process giving different emissivity (e) at high (eLWIR-H of 0.61) and low (eLWIR-L of 0.21) temperatures to regulate radiative cooling automatically while maintaining luminous transparency and near-infrared (NIR) modulation. These passive and independent visible-NIR-LWIR regulated smart windows are capable of dynamic radiative cooling for self-adapting applications across different climate zones.

Original language	English
Pages (from-to)	1501-1504
Number of pages	4
Journal	Science
Volume	374
Issue number	6574
DOIs	https://doi.org/10.1126/science.abg0291
Publication status	Published - 17 Dec 2021

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10.1126/science.abg0291

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@article{a0103b579d4240e28b3c10e149f895ba,

title = "Scalable thermochromic smart windows with passive radiative cooling regulation",

abstract = "Radiative cooling materials spontaneously radiate long-wave infrared (LWIR) to the cold outer space, providing cooling power that is preferred in hot seasons. Radiative cooling has been widely explored for walls and roofs but rarely for windows, which are one of the least energy-efficient parts of buildings. We fabricated scalable smart windows using a solution process giving different emissivity (e) at high (eLWIR-H of 0.61) and low (eLWIR-L of 0.21) temperatures to regulate radiative cooling automatically while maintaining luminous transparency and near-infrared (NIR) modulation. These passive and independent visible-NIR-LWIR regulated smart windows are capable of dynamic radiative cooling for self-adapting applications across different climate zones.",

author = "Shancheng Wang and Tengyao Jiang and Yun Meng and Ronggui Yang and Gang Tan and Yi Long",

note = "The research was supported by the National Research Foundation, Prime Minister{\textquoteright}s Office, Singapore, under its Campus for Research Excellence and Technological Enterprise (CREATE) program and by the Singapore-HUJ Alliance for Research and Enterprise (SHARE), the Sino-Singapore International Joint Research Institute (SSIJRI), and Singapore Ministry of Education (MOE) Academic Research Fund Tier One RG103/19. Publisher Copyright: {\textcopyright} 2021 American Association for the Advancement of Science. All rights reserved.",

year = "2021",

month = dec,

day = "17",

doi = "10.1126/science.abg0291",

language = "English",

volume = "374",

pages = "1501--1504",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

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TY - JOUR

T1 - Scalable thermochromic smart windows with passive radiative cooling regulation

AU - Wang, Shancheng

AU - Jiang, Tengyao

AU - Meng, Yun

AU - Yang, Ronggui

AU - Tan, Gang

AU - Long, Yi

N1 - The research was supported by the National Research Foundation, Prime Minister’s Office, Singapore, under its Campus for Research Excellence and Technological Enterprise (CREATE) program and by the Singapore-HUJ Alliance for Research and Enterprise (SHARE), the Sino-Singapore International Joint Research Institute (SSIJRI), and Singapore Ministry of Education (MOE) Academic Research Fund Tier One RG103/19. Publisher Copyright: © 2021 American Association for the Advancement of Science. All rights reserved.

PY - 2021/12/17

Y1 - 2021/12/17

N2 - Radiative cooling materials spontaneously radiate long-wave infrared (LWIR) to the cold outer space, providing cooling power that is preferred in hot seasons. Radiative cooling has been widely explored for walls and roofs but rarely for windows, which are one of the least energy-efficient parts of buildings. We fabricated scalable smart windows using a solution process giving different emissivity (e) at high (eLWIR-H of 0.61) and low (eLWIR-L of 0.21) temperatures to regulate radiative cooling automatically while maintaining luminous transparency and near-infrared (NIR) modulation. These passive and independent visible-NIR-LWIR regulated smart windows are capable of dynamic radiative cooling for self-adapting applications across different climate zones.

AB - Radiative cooling materials spontaneously radiate long-wave infrared (LWIR) to the cold outer space, providing cooling power that is preferred in hot seasons. Radiative cooling has been widely explored for walls and roofs but rarely for windows, which are one of the least energy-efficient parts of buildings. We fabricated scalable smart windows using a solution process giving different emissivity (e) at high (eLWIR-H of 0.61) and low (eLWIR-L of 0.21) temperatures to regulate radiative cooling automatically while maintaining luminous transparency and near-infrared (NIR) modulation. These passive and independent visible-NIR-LWIR regulated smart windows are capable of dynamic radiative cooling for self-adapting applications across different climate zones.

UR - http://www.scopus.com/inward/record.url?scp=85122369726&partnerID=8YFLogxK

UR - https://www.science.org/doi/10.1126/science.abg0291

U2 - 10.1126/science.abg0291

DO - 10.1126/science.abg0291

M3 - Journal article

C2 - 34914526

AN - SCOPUS:85122369726

SN - 0036-8075

VL - 374

SP - 1501

EP - 1504

JO - Science

JF - Science

IS - 6574

ER -

Scalable thermochromic smart windows with passive radiative cooling regulation

Abstract

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