A water-based molecular flip-flop

被引:3
|
作者
Wang, Yu [1 ,2 ]
Huang, Jiping [3 ]
机构
[1] Zhejiang Agr & Forestry Univ, Dept Phys, Hangzhou 311300, Linan, Peoples R China
[2] Zhejiang Agr & Forestry Univ, Zhejiang Prov Key Lab Chem Utilizat Forestry Biom, Hangzhou 311300, Linan, Peoples R China
[3] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
来源
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2014年 / 68卷 / 03期
基金
中国国家自然科学基金;
关键词
ATOMIC-FORCE MICROSCOPY; WALLED CARBON NANOTUBES; ON-A-CHIP; LOGIC; TIPS; ELECTROCHEMISTRY; NANOELECTRODES; TECHNOLOGIES; BIOMOLECULES; SIMULATION;
D O I
10.1051/epjap/2014140239
中图分类号
O59 [应用物理学];
学科分类号
摘要
The flip-flop, which has been widely used in digital circuits, has two stable states and can be used to store state information. Because traditional flip-flops based on digital circuits suffer from a barrier to higher performance, it is necessary to explore some new alternative devices. For this purpose, we utilize molecular dynamics simulations to design a molecular flip-flop, which contains one water molecule confined within a single-walled carbon nanotube. Its two states can be switched within 0.5 ps (2000 GHz), and its state information can be exported by the charged atomic-force microscope force probes. The mechanism of the flip-flop depends on the behavior of a water molecule in a nonuniform electric field. In particular, a water molecule always moves toward the location of lowest electric energy in a nonuniform electric field generated by point charges. The resulting flip-flop could be utilized for designing nanoscale devices.
引用
收藏
页数:5
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