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Synthesis and characterization of inorganic-organic hybrid semiconductor materials for energy applications
Descriptive
TitleInfo
Title
Synthesis and characterization of inorganic-organic hybrid semiconductor materials for energy applications
Name
(type = personal)
NamePart
(type = family)
Roushan
NamePart
(type = given)
Mojgan
NamePart
(type = date)
1981-
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mojgan roushan
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(authority = RULIB)
author
Name
(type = personal)
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(type = family)
Li
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(type = given)
Jing
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Jing Li
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Advisory Committee
Role
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(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Brennan
NamePart
(type = given)
John
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John Brennan
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Advisory Committee
Role
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(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Lee
NamePart
(type = given)
KiBum
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KiBum Lee
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Advisory Committee
Role
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(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Jiang
NamePart
(type = given)
Wei
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Wei Jiang
Affiliation
Advisory Committee
Role
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(authority = RULIB)
outside member
Name
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NamePart
Rutgers University
Role
RoleTerm
(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
OriginInfo
DateCreated
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2012
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(type = degree)
2012-10
Place
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xx
Language
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eng
Abstract
(type = abstract)
In the past few years, it has been shown that inorganic-organic hybrid semiconductors are promising candidates for optoelectronics and clean energy applications. These materials have the advantage of combining the excellent electrical, optical, thermal and transport properties of inorganic components with the flexibility, processability and structural diversity of the organic components. A representative of such materials is the inorganic-organic hybrids based on II-VI semiconductors. We have developed a unique class of II-VI based hybrids composed of alternating layers of double atomic slabs of Zn2S2 and organic amine molecules. The Zn2S2 based double-layer hybrids emit bright white light and their internal quantum efficiencies have reached ~33-35%, very close to the performance level of the (YAG):Ce3+ yellow phosphors presently dominating the white light emitting diodes (WLED) market. We have demonstrated that their band-gap and photoluminescence properties, quantum yield and color quality can be systematically tuned by varying the doping level and composition of inorganic and organic components. Therefore, these white-light emitting hybrid semiconductors represent a new type of single-phased phosphors made of semiconductor bulk materials with great promise for use in WLEDs which are of intense interest for general illuminations. Furthermore, we have successfully synthesized a series of new hybrid materials containing one-dimensional chains or two-dimensional layers of V-VI motifs with organic spacers between the channels or the layers. Inserting organic amines in these crystal lattices reduces the thermal conductivity without any significant effect on the electrical conductivity, and thus, it may give rise to an increase in the figure of merit, a parameter that characterizes the effectiveness of thermoelectric devices. The ability to tune the optical, electrical, and thermal properties, coupled with their high fluorescence quantum yield, solution processability, low-temperature and cost-effective one-pot synthesis, precisely controllable stoichiometry and high yield, not only make these hybrid materials promising candidates for use in WLEDs, but also highly versatile semiconductors for a range of applications such as optoelectronics, energy generation, and conversion devices.
Subject
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Topic
Chemistry and Chemical Biology
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Title
Rutgers University Electronic Theses and Dissertations
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Identifier
ETD_4165
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electronic resource
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application/pdf
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text/xml
Extent
xvii, 105 p. : ill.
Note
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Ph.D.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Mojgan Roushan
Subject
(authority = ETD-LCSH)
Topic
Hybrid systems
Subject
(authority = ETD-LCSH)
Topic
Power semiconductors
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000066958
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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NjNbRU
Identifier
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doi:10.7282/T3JQ0ZS6
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
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The author owns the copyright to this work.
RightsHolder
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Name
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roushan
GivenName
mojgan
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
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(qualifier = exact);
(point = start)
2012-07-23 17:23:22
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Name
mojgan roushan
Role
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Affiliation
Rutgers University. Graduate School - New Brunswick
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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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