首页|基于含氧氢化钆薄膜的宽波段调制光致变色智能窗

基于含氧氢化钆薄膜的宽波段调制光致变色智能窗

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光致变色窗户因结构简单、被动调光和零能耗输入而被认为是一种高效的节能智能窗,然而有关光致变色智能窗的研究很少涉及中红外(MIR)波段,这限制了节能效率.本研究通过在 ITO 衬底上生长稀土含氧氢化物(ReOxHy)薄膜,实现了宽波段调制的能力.所开发的光致变色智能窗口能够通过感应光强度自动调节发射率,同时保持可见光和近红外(NIR)调制(ΔTsol=35.1%,ΔTl um=37%,Δε8-13 μm=0.12).研究还通过优化制备气氛,实现了GdOxHy 的一步制备并提高了稳定性,通过综合表征分析了光致变色机理.总之,这种跨越可见光-近红外-中红外的被动协同调制方法有望推动光致变色智能窗的发展.
Broadband-modulated Photochromic Smart Windows Based on Oxygen-containing Gadolinium Hydride Films
Photochromic windows are considered an effective and energy-efficient smart window due to their simple structure,passive light modulation,and zero-energy input.However,the research on photochromic smart windows has rarely addressed the mid-infrared(MIR)bands,which greatly limits energy-saving efficiency.Here,we report that rare-earth oxygen-containing hydrides(ReOxHy)films grown on ITO substrates have the ability to be broadband modulated.The developed photochromic smart window is capable of automatically adjusting emissivity by sensing light intensity while maintaining visible and near-infrared(NIR)modulation(ΔTsol = 35.1%,ΔTlum = 37%,and Δε8-13 μm = 0.12).We also achieved one-step preparation of GdOxHy with improved stability by optimising the preparation atmosphere.The photochromic mechanism was analyzed by comprehensive characterization.In conclusion,this passive and synergistic modulation method across the visible-NIR-MIR is expected to greatly advance the field of photochromic smart windows.

photochromicrare-earth oxygen-containing hydridesmart windowdynamic radiative cooling

李众少、李明、曹逊

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中国科学院 上海硅酸盐研究所, 上海 200050

中国科学院大学 材料科学与光电工程中心, 北京 100049

光致变色 稀土含氧氢化物 智能窗 动态辐射制冷

国家重点研发计划Key Collaborative Research Program of the Alliance of International Science Organizations国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金Shanghai B&R International Cooperation ProgramShanghai"Science and Technology Innovation Action Plan"Intergovernmental International Science and Technology Cooperation PrograShanghai Science and Technology FundsOpen Project of Wuhan National Laboratory for OptoelectronicsScience Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures

2021YFA0718900ANSO-CR-KP-2021-0151972328620053015200239262175248206407702002152071250023ZR14819002022WNLOKF014SKL202202

2024

10.15541/jim20230539

无机材料学报
中国科学院上海硅酸盐研究所

无机材料学报

CSTPCD北大核心
影响因子：0.768
ISSN：1000-324X
年,卷(期)：2024.39(4)
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