发表机构
Center for Computation and Theory of Soft Materials, Robert R. McCormick School of Engineering and Applied Science, Northwestern University; Department of Materials Science & Engineering, Northwestern University; Department of Physics and Astronomy, Northwestern University（西北大学麦考密克工程与应用科学学院软物质计算与理论中心; 西北大学材料科学与工程系; 西北大学物理与天文学系）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究揭示图案化电极电解池阻抗频率色散起始于谐振频率约两倍处，且不受驱动方式及双电层重叠影响，为储能及生物接口器件提供普适表征规律。
AI 中文摘要
复制生理过程的离子电子器件将提高能效，以支持人工智能架构。然而，能量存储和转换器件表现出无序的界面和体相构型，传统阻抗谱无法解析这些构型。在此，我们表明，对于具有非均匀充电电极的电解池，其阻抗中频率色散的起始点大约发生在谐振器固有频率的两倍处，无论该电池是由振荡电荷还是电压差驱动，这一结论均成立，并且对于重叠和非重叠的双电层均有效。除了表征能量存储器件外，这些普适发现还适用于与生物材料接口的器件。
英文摘要
Iontronic devices that replicate physiological processes will improve energy efficiency to support artificial-intelligence architectures. Energy storage and conversion devices, however, display disordered interfacial and bulk configurations that conventional impedance spectroscopy cannot resolve. Here, we show that the onset of frequency dispersion in the impedance of an electrolytic cell with non-uniformly charged electrodes takes place at approximately twice the resonator natural frequency, independently of whether the cell is driven by oscillating charges or voltage differences, and remains valid for both overlapping and non-overlapping double layers. In addition to characterizing energy storage devices, these universal findings apply to devices interfaced with biomaterials.
Comments4 pages, 4 figures
