Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2802188
Title: Field-induced meniscus dynamics and its impact on the nanoscale tip-surface interface
Authors: Xie, X.N. 
Chung, H.J. 
Tong, D.M. 
Sow, C.H. 
Wee, A.T.S. 
Issue Date: 2007
Citation: Xie, X.N., Chung, H.J., Tong, D.M., Sow, C.H., Wee, A.T.S. (2007). Field-induced meniscus dynamics and its impact on the nanoscale tip-surface interface. Journal of Applied Physics 102 (8) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2802188
Abstract: We describe the spatiotemporal evolution of the nanoscale tip-surface junction during field-induced water meniscus formation in the junction. The motion of the meniscus and tip was analyzed on the basis of typical parameters concerning the nanoscale meniscus and tip-surface configuration. Being attracted by the electric field, the meniscus generates a repulsive hydrodynamic impact force counteracting the electrostatic force on the tip. The imbalance of the forces leads to an increase of the tip-surface separation distance, and the increase is related to the initial experimental parameters including tip bias voltage and tip spring constant. An explicit equation was derived for the estimation of the tip-surface junction enlargement effect. The theoretical results were confirmed by atomic force microscope (AFM) in situ observations of tip repulsion under electric fields. The induced tip-surface junction enlargement has significant implications in AFM nanolithography, e.g., it could facilitate the formation of nanostructures with high vertical dimensions/aspect ratios. © 2007 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/117348
ISSN: 00218979
DOI: 10.1063/1.2802188
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

7
checked on Oct 11, 2019

WEB OF SCIENCETM
Citations

6
checked on Oct 11, 2019

Page view(s)

89
checked on Oct 11, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.