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Structure design and properties study of inorganic organic hybrid materials for energy related applications

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Title
Structure design and properties study of inorganic organic hybrid materials for energy related applications
Name (type = personal)
NamePart (type = family)
Fang
NamePart (type = given)
Yang
NamePart (type = date)
1991-
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Yang Fang
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Li
NamePart (type = given)
Jing
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Jing Li
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Advisory Committee
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chair
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Garfunkel
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Eric
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Eric Garfunkel
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Advisory Committee
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internal member
Name (type = personal)
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Asefa
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Tewodros
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Tewodros Asefa
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Advisory Committee
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RoleTerm (authority = RULIB)
internal member
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Pan
NamePart (type = given)
Long
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Long Pan
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
outside member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
School of Graduate Studies
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (qualifier = exact)
2019
DateOther (qualifier = exact); (type = degree)
2019-01
CopyrightDate (encoding = w3cdtf)
2019
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
Global energy consumption has escalated dramatically with continuing consumption and population increase trends. It is one of the biggest challenge in the world to satisfy growing energy demand in an environmentally-benign manner. Solar cells have attracted a significant amount of attention because of its inexpensive, clean and sustainable renewable energy source nature. Although great progress has been made in solar cells, there are a lot of challenges such as high manufacturing cost, loss of material for crystal silicon and low efficiency. In addition, compared to traditional incandescent, energy-efficient lightbulbs, such as compact fluorescent lamps (CFLs) and light-emitting diodes (LEDs), save about 25% - 80% energy with 3 – 25 times longer lifetime. While rare-earth element (REE) based phosphors currently dominate the lighting market, developing low-cost, high-performance and REE free phosphors has becoming increasingly important, due to the potential cost and supply risks of REEs, as well as their negative impact on the environment and human health.
In this thesis I describe the design and synthesis of a family of high-performance inorganic-organic hybrid phosphor materials composed of extended and robust one-, two- and three-dimensional networks. Following a bottom-up solution-based synthetic approach, these structures are constructed by connecting highly emissive Cu4I4 cubic clusters via carefully selected ligands that form strong Cu-N bonds. They emit intensive yellow-orange light with high luminescence quantum efficiency, coupled with large Stokes shift which greatly reduces self-absorption. They also demonstrate exceptionally high framework- and photo-stability, comparable to those of commercial phosphors.
As a continuing effort, I have designed a unique type of multiple-stranded one-dimensional (1D) structures as robust and efficient lighting phosphors. Following a systematic ligand design strategy, these structures are constructed by forming multiple coordination bonds between copper iodide based clusters (e.g. dimer, tetramer and hexamer) and strong-binding bidentate organic ligands which lead to extended 1D chains of high stability. The multiple-stranded chain structures display significant improvements in thermal stability, largely attributed to the multi-dentate nature and enhanced Cu-N bonding. The luminescence mechanism of these compounds are studied by temperature dependent photoluminescence experiments. High internal quantum yields (IQYs) are achieved for these compounds under blue excitation, marking one of the highest values reported so far for crystalline inorganic-organic hybrid yellow phosphors.
I have also developed a series of new copper iodide based hybrid compounds with tunable narrow-bandgaps. Large single crystals are grown and used incharge transport measurements. They exhibit low state trap density on the order of 1010 per cubic centimetre as well as long carrier diffusion length. The high water stability coupled with with good conductivity making these materails a promising candidate for potential optoelectronic applications.
Subject (authority = RUETD)
Topic
Chemistry and Chemical Biology
Subject (authority = ETD-LCSH)
Topic
Phosphers
Subject (authority = ETD-LCSH)
Topic
Energy development
RelatedItem (type = host)
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Title
Rutgers University Electronic Theses and Dissertations
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ETD
Identifier
ETD_9538
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electronic resource
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application/pdf
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text/xml
Extent
1 online resources (115 pages : illustrations)
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Yang Fang
RelatedItem (type = host)
TitleInfo
Title
School of Graduate Studies Electronic Theses and Dissertations
Identifier (type = local)
rucore10001600001
Location
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NjNbRU
Identifier (type = doi)
doi:10.7282/t3-5v1f-j776
Genre (authority = ExL-Esploro)
ETD doctoral
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Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Fang
GivenName
Yang
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2019-01-16 15:26:16
AssociatedEntity
Name
Yang Fang
Role
Copyright holder
Affiliation
Rutgers University. School of Graduate Studies
AssociatedObject
Type
License
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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.
RightsEvent
Type
Embargo
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2019-01-31
DateTime (encoding = w3cdtf); (qualifier = exact); (point = end)
2021-01-30
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after January 30th, 2021.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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2019-01-17T10:49:53
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2019-01-17T10:49:53
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