Demonstration of thermal fluctuation temperature sensor using nano-gap electrode

点击翻译按钮获取中文摘要

Electric double layer is the local distribution of ions created at any liquid and solid interface. Because the thickness of the electric double layer is typically in nanometer scale and the size of nanospace is as the same order of magnitude as the thickness of electric double layer, the nanospace should be partially/totally filled with an electric double layer.Here, electrical impedance spectroscopy was used to comprehensively investigate how the ionic concentration and the volume of nanospace influence on the electrical properties of various ionic solutions in a nanochannel. The electkinetic properties and the thickness of electric double layer in the nanospace were determined to be dependent on the hydration diameter, mobility, and ionic strength of the various ion spices. The electric double layer overlaps under particular conditions, such as with a sufficiently narrow channels, and the qualitative properties of this were consistent with the Debye-Huckel-Onsager equation.