Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/51962
Title: Characterisation and Modelling of Wicking on Ordered Silicon Nanostructured Surfaces fabricated by Interference Lithography and Metal-Assisted Chemical Etching
Authors: MAI TRONG THI
Keywords: wicking, capillary, silicon nanostructure, fluid dynamics, interference lithography, metal-assisted etching
Issue Date: 23-Aug-2013
Source: MAI TRONG THI (2013-08-23). Characterisation and Modelling of Wicking on Ordered Silicon Nanostructured Surfaces fabricated by Interference Lithography and Metal-Assisted Chemical Etching. ScholarBank@NUS Repository.
Abstract: The capillary rise of liquid on the surface, or `wicking?, has potential applications in biological and industrial processes such as transport of fluids, drug delivery, oil recovery and integrated circuit chip cooling. In this study we examine the wicking phenomenon on Silicon nanostructured surfaces fabricated using the interference lithography and metal-assisted chemical etching (IL-MACE) techniques. With these techniques, we synthesized different patterns structures (pillars and fins) of nanometer size with different sizes, heights, and orientations along the line of liquid flow (for nanofins) on a Silicon substrate. By balancing the driving capillary forces in the rough surface and viscous dissipation forces caused by the nanostructures, we are able to we are able to establish the dependence of ?, the drag enhancement factor, on the geometrical parameters of the nanostructures and come up with an equation to predict the wicking process without use of extensive empirical values. Excellent agreement between theoretical and experimental results was achieved.
URI: http://scholarbank.nus.edu.sg/handle/10635/51962
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
PhD Thesis - Mai Trong Thi - A0028069B .pdf4.07 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

117
checked on Dec 11, 2017

Download(s)

164
checked on Dec 11, 2017

Google ScholarTM

Check


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