鲁棒、高对比度、可回收的基于锌的动态窗口通过协同电解质和界面工程
Robust, High-Contrast, Recyclable Zinc-Based Dynamic Windows via Synergistic Electrolyte and Interfacial Engineering
AI总结：
通过协同电解质和界面工程，开发出高对比度、可回收的基于锌的动态窗口，实现长循环寿命和高光学调制性能。
摘要：
基于锌的电色显示器提供了一种可持续的动态光学管理途径，但受到不可逆的锌沉积/剥离和副反应的困扰。本文报道了一种鲁棒、高对比度且可回收的基于锌的动态窗口，该窗口通过协同电解质和界面工程策略实现。分子动力学模拟和电化学分析揭示了一种双离子协同机制，该机制支配可逆性：具有最强结合亲和力的阴离子通过稳定内层溶剂壳来指导均匀的锌沉积，而富集在界面的甲酸根阴离子在氧化过程中通过质子化促进平滑剥离。这种有序的相互作用有效消除了“死锌”积累和枝晶生长。因此，该设备展示了15000次循环的记录高寿命，降解 negligible，并保持大于50%的光学调制，以及多个光学状态（透明、灰色、黑色和镜面）。此外，它实现了大于50%的反射调制，稳定超过2000次循环。这项工作确立了可回收的基于锌的动态窗口作为可扩展、高性能的替代品，为可持续建筑中的溶液处理节能窗户的可行性提供了进展。
英文摘要：
Zinc-based electrochromic devices offer a sustainable route for dynamic optical management but are plagued by poor cycling stability due to irreversible zinc plating/stripping and side reactions. Herein, we report a robust, high-contrast, and recyclable zinc-based dynamic window enabled by a synergistic electrolyte and interfacial engineering strategy. Molecular dynamics simulations and electrochemical analyses reveal a dual-ion cooperative mechanism that governs the reversibility: anions with the strongest binding affinity guide uniform Zn deposition by stabilizing the inner solvation shell, while formate anions co-enriched at the interface facilitate smooth stripping via protonation during the oxidation process. This orchestrated interplay effectively eliminates "dead Zn" accumulation and dendrite growth. Consequently, the device demonstrates a record-high lifespan of 15,000 cycles with negligible degradation and maintains a large optical modulation of >50%, along with multiple optical states (transparent, gray, black, and mirror). Furthermore, it achieves a large reflectance modulation (>50%) stable for over 2,000 cycles. This work establishes the recyclable zinc-based dynamic window as a scalable, high-performance alternative to conventional electrochromic systems, advancing the feasibility of solution-processed energy-saving windows in sustainable buildings.
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