Scholarlink

<p>Compared with conventional radiative coolers, colored radiative coolers not only enable radiative cooling performance but also exhibit rich structural colors to satisfy people’s aesthetic demands, holding broad practical application prospects. This paper proposes a colored radiative cooler based on Fano resonance, which consists of a bottom Polydimethylsiloxane (PDMS) film and top two-dimensional cubic Si/PDMS gratings. This cooler exhibits wide-angle color display capability and high-efficiency relative radiative cooling performance. Blue, green, yellow, pink, and orange colors can be realized by tuning the grating parameters. The average thermal emissivity of the cooler within the atmospheric transmission window exceeds 0.99. During daytime operation, it achieves a temperature reduction of 21&#xa0;K compared with bare PDMS film at a non-radiative heat transfer coefficient of 8&#xa0;W/(m²·K). This work offers a promising approach for the development of structural-color radiative coolers, and expands the application scenarios and domains of radiative cooling technology.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Design of a colored radiative cooler based on two-dimensional Si/PDMS gratings

  • 期刊论文

  • 发表日期：

    2026年7月17日

查看全文
  • Zhaojie Liu,
  • Chengyou Lin,
  • Shujing Chen

摘要

Compared with conventional radiative coolers, colored radiative coolers not only enable radiative cooling performance but also exhibit rich structural colors to satisfy people’s aesthetic demands, holding broad practical application prospects. This paper proposes a colored radiative cooler based on Fano resonance, which consists of a bottom Polydimethylsiloxane (PDMS) film and top two-dimensional cubic Si/PDMS gratings. This cooler exhibits wide-angle color display capability and high-efficiency relative radiative cooling performance. Blue, green, yellow, pink, and orange colors can be realized by tuning the grating parameters. The average thermal emissivity of the cooler within the atmospheric transmission window exceeds 0.99. During daytime operation, it achieves a temperature reduction of 21 K compared with bare PDMS film at a non-radiative heat transfer coefficient of 8 W/(m²·K). This work offers a promising approach for the development of structural-color radiative coolers, and expands the application scenarios and domains of radiative cooling technology.