- Title Information
- Title
- An Investigation of Electric Field Induced Surface Diffusion and Micro/Nano Scale Island Growth: Experiments and Modeling
- Name:
Personal
- Name Part
- Gill, Vinaypreet S.
- Role
- Role Term:
Text
- creator
- Origin Information
- Copyright Date
(keyDate="yes", encoding="w3cdtf")
- 2008
- Physical Description
- Extent
- xvi, 104 p.
- digitalOrigin
- born digital
- Note
- Thesis (Ph.D.) -- Brown University (2009)
- Name:
Personal
- Name Part
- Guduru, Pradeep
- Role
- Role Term:
Text
- director
- Name:
Personal
- Name Part
- Bower, Allan
- Role
- Role Term:
Text
- reader
- Name:
Personal
- Name Part
- Sheldon, Brian
- Role
- Role Term:
Text
- reader
- Name:
Corporate
- Name Part
- Brown University. Division of Engineering. Mechanics of Solids
- Role
- Role Term:
Text
- sponsor
- Genre (aat)
- theses
- Abstract
- An experimental study of electric field induced surface diffusion is presented. A FEM analysis and a stability analysis of conducting surfaces subjected to a normal uniform
electric field shows that sufficiently strong electric field can destabilize a flat surface. Further, electric field gradients such as those under a sharp electrode or the fringe field in a
capacitor can drive surface diffusion, leading to nano-scale and micro-scale surface feature growth. Experiments are conducted on gold surfaces at elevated temperatures around 275 oC, subjected
to electric fields of the order of 108-109 V/m. Growth of islands as ridges was observed, the height of which was around 100-200nm. The experiments are carried out with electrode width ranging
from 100 microns to 1.5 ?m. The two bands of islands growing under the edge of electrodes start to merge into a single band at smaller electrode width. A description of the initial
surface normal velocity is developed by using the Maxwell-Rowgoski solution for the fringe field at the edge of a parallel plate capacitor. A FEM analysis was also carried out which shows the
instability of a flat surface subjected to a normal electric field. The FEM results show growth of islands in the fringe field regions. The analysis also shows the transition from two separate
islands under the two edges to a single island as the electrode width is decreased.
- Subject (Local)
- Topic
- Surface Diffusion
- Subject (Local)
- Topic
- Surface instability
- Subject (Local)
- Topic
- Island growth
- Subject (Local)
- Topic
- Guided assembly.
- Subject (FAST)
(authorityURI="http://id.worldcat.org/fast", valueURI="http://id.worldcat.org/fast/904783")
- Topic
- Electric fields
- Record Information
- Record Content Source (marcorg)
- RPB
- Record Creation Date
(encoding="iso8601")
- 20091218
- Language
- Language Term:
Code (ISO639-2B)
- eng
- Language Term:
Text
- English
- Identifier:
DOI
- 10.7301/Z0TH8JZW
- Access Condition:
rights statement
(href="http://rightsstatements.org/vocab/InC/1.0/")
- In Copyright
- Access Condition:
restriction on access
- Collection is open for research.
- Type of Resource (primo)
- dissertations