Multi-functional smart bulk hydrogel panels with strong near-infrared shielding and active local control†

IF 10.7 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY Materials Horizons Pub Date : 2025-02-06 DOI:10.1039/D4MH01648C

Yitong Ding, Gang Li, Keunhyuk Ryu, JianGuo Guan, Shancheng Wang, Ying Xiong, Shaoyun Guo and Yi Long

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Abstract

Thermochromic hydrogel is a versatile smart material that can be used in various applications. In this paper, we present a new concept of smart windows to passively regulate light transmittance and reduce energy consumption while functioning as an information display. By incorporating passive solar regulation and active local control, this window is devised through the multilayer assembly of tailored poly(N-isopropylacrylamide) (PNIPAM) hydrogels and surface-modified photonic crystal films. The modified surface tension of solvent tunes the scattering center size of the hydrogel, and the addition of the photothermal films (PT films) imparts a high near-infrared (NIR) shielding and light-to-heat conversion, which is needed for low-latitude smart window application. Together with high writing speed, clarity, and repeatability for local writing. This new smart hydrogel engineering can have broad applications, allowing more functionalities in designing building façades.

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多功能智能大块水凝胶板，具有强近红外屏蔽和主动局部控制。

热致变色水凝胶是一种多功能智能材料，可用于各种应用。在本文中，我们提出了一种智能窗户的新概念，它可以被动地调节透光率，降低能耗，同时起到信息显示的作用。通过结合被动太阳能调节和主动局部控制，该窗口通过定制的聚n -异丙基丙烯酰胺（PNIPAM）水凝胶和表面修饰的光子晶体膜的多层组装而设计。溶剂的表面张力改变了水凝胶的散射中心大小，而光热薄膜（PT薄膜）的加入赋予了高的近红外（NIR）屏蔽和光热转换，这是低纬度智能窗口应用所需要的。加上高写作速度，清晰，可重复的本地写作。这种新的智能水凝胶工程可以有广泛的应用，在设计建筑立面时允许更多的功能。

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来源期刊

Materials Horizons CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

18.90

自引率

2.30%

发文量

306

审稿时长

1.3 months

期刊介绍： Materials Horizons is a leading journal in materials science that focuses on publishing exceptionally high-quality and innovative research. The journal prioritizes original research that introduces new concepts or ways of thinking, rather than solely reporting technological advancements. However, groundbreaking articles featuring record-breaking material performance may also be published. To be considered for publication, the work must be of significant interest to our community-spanning readership. Starting from 2021, all articles published in Materials Horizons will be indexed in MEDLINE©. The journal publishes various types of articles, including Communications, Reviews, Opinion pieces, Focus articles, and Comments. It serves as a core journal for researchers from academia, government, and industry across all areas of materials research. Materials Horizons is a Transformative Journal and compliant with Plan S. It has an impact factor of 13.3 and is indexed in MEDLINE.