Overcoming color limitation of sub-ambient radiative cooler for full-color expression

Suwan Jeon, Soomin Son, Seokhwan Min, Hyeonjin Park, Heon Lee, Jonghwa Shin

    Research output: Contribution to journalConference articlepeer-review

    Abstract

    The lack of color diversity is the fundamental problem inherent in the radiative cooling system, which raises practical issues of eye safety, light pollution, and aesthetics. In this work, we show a breakthrough for colored radiative cooling by experimentally demonstrating that sub-ambient cooling under direct sunlight is possible for all colors, including black. The key principle is thermal non-equilibrium between color and cooling parts, which can potentially serve as a new avenue for radiative cooling applications requiring diverse color expression.

    Original languageEnglish
    Pages (from-to)1344-1345
    Number of pages2
    JournalInternational Conference on Metamaterials, Photonic Crystals and Plasmonics
    Publication statusPublished - 2023
    Event13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023 - Paris, France
    Duration: 2023 Jul 182023 Jul 21

    Bibliographical note

    Publisher Copyright:
    © 2023, META Conference. All rights reserved.

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Materials Science (miscellaneous)
    • Electronic, Optical and Magnetic Materials
    • Materials Chemistry

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