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Structure and clustering of colloidal dimers on a surface
Descriptive
TitleInfo
Title
Structure and clustering of colloidal dimers on a surface
Name
(type = personal)
NamePart
(type = family)
Qiao
NamePart
(type = given)
Qi
NamePart
(type = date)
1990-
DisplayForm
Qi Qiao
Role
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(authority = RULIB)
author
Name
(type = personal)
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(type = family)
Chiew
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(type = given)
Yee
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Yee Chiew
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Advisory Committee
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(authority = RULIB)
chair
Name
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Rutgers University
Role
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(authority = RULIB)
degree grantor
Name
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NamePart
Graduate School - New Brunswick
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school
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Text
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theses
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2016
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(type = degree)
2016-05
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2016
Place
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xx
Language
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(type = code)
eng
Abstract
(type = abstract)
The study of two-dimensional (2D) structures formed by nanoparticles and colloidal particles has attracted a great deal of attention due to the rich and diverse structural patterns found in these systems. The self-assembly of particles into periodic phases is of relevance to technological applications in photonics, biomaterials, catalytic supports, and advanced materials. Very recently growing attention has been paid to the investigation of the self-organization of colloidal dumbbells, that is, dimers composed of two connected spherical particles. Because of the technical capability to synthesize dimeric nanoparticles of different sizes, aspect ratios, and asymmetric functionalizations, recent studies have demonstrated that these anisotropic particles exhibit diverse periodic structures and can be used as building blocks for the fabrication of new materials. We report an extensive study of the structure and clustering properties of colloidal dimers that interact through excluded-volume interactions combined with short-range attraction and long-range electrostatic repulsion. Such inter-particle interacting potential can generate particle aggregates through short-range attraction and cluster stabilization due to long-range repulsion. We carried out a systematic molecular dynamics simulations to study the behavior of colloidal dimers that interact through this potential on a two dimensional planar surface. Using mathematic analysis of the radial distribution functions, cluster size distributions, and thermodynamic properties of the colloidal system, we have identified different distinct structural states: disordered fluids, finite-size aggregates, one-dimensional clusters, and percolating gel phase. At very low temperatures, the system may exist as a low-density ordered phase. We also examine the structure of the clusters, and the dynamics of the aggregation process. Our study enables us to map a phase diagram for the colloidal dimer system on the temperature-density plane. The information obtained in this study provides fundamental scientific insight and shed lights on the behavior of non-spherical colloidal dimers adsorbed on a planar surface.
Subject
(authority = RUETD)
Topic
Chemical and Biochemical Engineering
Subject
(authority = ETD-LCSH)
Topic
Nanoparticles
Subject
(authority = ETD-LCSH)
Topic
Colloidal crystals
RelatedItem
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Rutgers University Electronic Theses and Dissertations
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ETD_7232
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electronic resource
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application/pdf
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text/xml
Extent
1 online resource (v, 34 p. : ill.)
Note
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M.S.
Note
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Includes bibliographical references
Note
(type = statement of responsibility)
by Qi Qiao
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T3WS8WD8
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
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The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Qiao
GivenName
Qi
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
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2016-04-14 14:46:16
AssociatedEntity
Name
Qi Qiao
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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