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Electrochromic Dynamic Windows with Redox Mediators

delete2026-03-15
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PRE
AI
A
Aiyan Shi
G
Guojian Yang *
C
Chenjie Mu
W
Wenxin Ye
Y
Yiwen Guo
Z
Zhixing Sun
A
Awais Ghani
Z
Zhixin Wu
Z
Zhenqian Pang *
G
Gang Tan *
DOI:10.1002/adma.72800delete
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摘要

摘要

En 中文
建筑和交通部门主导着全球能源消耗,使得建筑物围护结构和车辆窗户的智能光热调控对于节能和人体舒适度至关重要。尽管电致变色(EC)动态窗户具有巨大潜力,但传统技术面临可扩展性和成本障碍。可逆金属电沉积(RME)提供了一种有前景的替代方案,其独特之处在于能够高效控制光热透射率。然而,对于实现均匀光学开关至关重要的对称双电极RME结构,由于电压驱动的寄生反应,其运行稳定性较差。在此,我们提出了一种将氧化还原介体(RMs)集成到EC动态窗户中的独特策略以克服这一限制。在Cu和Bi基RME水凝胶体系中使用聚(3,4-乙撑二氧噻吩):聚(苯乙烯磺酸盐)(PEDOT:PSS),我们展示了加速的界面动力学和降低的过电位。这使工作电压从−1.9 V降至−1.2 V,同时提高了长期工作稳定性(18,000 s vs. 180 s)。经RM工程化的EC动态窗户可实现6 000次循环而不发生退化,并保持稳定的开关光学性能,且表观上提升了光学开关速度。关键在于,该策略普遍提高了传统EC系统的性能(例如,氧化钨、viologen衍生物)。该RM策略建立了一种与材料无关的平台技术,通过统一的设计范式,实现了下一代动态玻璃的大规模制造。
Keyword:
electrochromic windows
material-agnostic platform
operational stability
redox mediators
reversible metal electrodeposition

期刊

Advanced Materials 封面图
Advanced Materials
IF:
26.8
论文数:
3.4W
被引数:
46.0W

机构

Z
Zhejiang University
学者数:
1.5W
论文数: 5.2K
被引数: 17.8W
U
university of chinese academy of sciences
学者数:
976
论文数: 395
被引数: 0
Z
zhejiang university
学者数:
17.7W
论文数: 12.1W
被引数: 152
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