基于含氧氢化钆薄膜的宽波段调制光致变色智能窗
Broadband-modulated Photochromic Smart Windows Based on Oxygen-containing Gadolinium Hydride Films
摘要
Abstract
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.关键词
光致变色/稀土含氧氢化物/智能窗/动态辐射制冷Key words
photochromic/rare-earth oxygen-containing hydride/smart window/dynamic radiative cooling分类
化学化工引用本文复制引用
李众少,李明,曹逊..基于含氧氢化钆薄膜的宽波段调制光致变色智能窗[J].无机材料学报,2024,39(4):441-448,8.基金项目
National Key Research and Development Program of China(2021YFA0718900) （2021YFA0718900）
Key Collaborative Research Program of the Alliance of International Science Organizations(ANSO-CR-KP-2021-01) （ANSO-CR-KP-2021-01）
National Natural Science Foundation of China(51972328,62005301,52002392,62175248) （51972328,62005301,52002392,62175248）
Shanghai B&R International Cooperation Program(20640770200) （20640770200）
Shanghai"Science and Technology Innovation Action Plan"Intergovernmental International Science and Technology Cooperation Program(21520712500) （21520712500）
Shanghai Science and Technology Funds(23ZR1481900) （23ZR1481900）
Open Project of Wuhan National Laboratory for Optoelectronics(2022WNLOKF014) （2022WNLOKF014）
Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures(SKL202202) （SKL202202）
