太赫兹辐射
邻接
润湿
材料科学
图层(电子)
电场
光电子学
纳米技术
复合材料
化学
有机化学
物理
量子力学
作者
Zhi Zhu,Junquan Zhu,Chao Chang,Chonghai Qi,Zhongjie Zhu,Hua Zhao,Dengsong Zhang,Xiao Cheng Zeng,Chunlei Wang
出处
期刊:Nano Letters
[American Chemical Society]
日期:2024-03-01
标识
DOI:10.1021/acs.nanolett.4c00248
摘要
Achieving timely, reversible, and long-range remote tunability over surface wettability is highly demanded across diverse fields, including nanofluidic systems, drug delivery, and heterogeneous catalysis. Herein, using molecular dynamic simulations, we show, for the first time, a theoretical design of electrowetting to achieve remotely controllable surface wettability via using a terahertz wave. The key idea driving the design is the unique terahertz collective vibration identified in the vicinal subnanoscale water layer, which is absent in bulk water, enabling efficient energy transfer from the terahertz wave to the rotational motion of the vicinal subnanoscale water layer. Consequently, a frequency-specific alternating terahertz electric field near the critical strength can significantly affect the local hydrogen-bonding network of the contact water layer on the solid surface, thereby achieving tunable surface wettability.
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