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Hydrothermal growth and characterization of titanium dioxide nanostructures for use in dye sensitized solar cells
Descriptive
TypeOfResource
Text
TitleInfo
(ID = T-1)
Title
Hydrothermal growth and characterization of titanium dioxide nanostructures for use in dye sensitized solar cells
Identifier
ETD_1702
Identifier
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000051408
Language
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eng
Genre
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theses
Subject
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Topic
Materials Science and Engineering
Subject
(ID = SBJ-1);
(authority = ETD-LCSH)
Topic
Dye-sensitized solar cells
Subject
(ID = SBJ-1);
(authority = ETD-LCSH)
Topic
Titanium dioxide
Subject
(ID = SBJ-1);
(authority = ETD-LCSH)
Topic
Solar energy
Subject
(ID = SBJ-1);
(authority = ETD-LCSH)
Topic
Renewable energy sources
Abstract
As the world's energy needs continue to grow, next generation photovoltaic cells are in high demand because they offer the possibility of an inexpensive alternative to current energy production techniques. Dye sensitized solar cells (DSSC's), utilize common materials and low cost commercialization techniques, which make them a compelling choice for research in this area. This research focuses on the titanium dioxide coating, which transfers electrons from the photoactive dye to the electrode. 3-4% efficient DSSC's using doctor bladed titanium dioxide coatings with a specific surface area of 55-60m2/g have been demonstrated in our laboratory. To enhance the efficiency of these cells, both the surface area and the electron conduction of the titania layer must be optimized. This has been done by utilizing high aspect ratio nanoparticles of titania instead of mesoporous layers formed with spherical particles. Anodization of titanium metal or anodic alumina membrane templating are common ways to produce nanorods, but involve complex processes leading toward expensive commercialization. This research instead focuses on the hydrothermal growth of nanofibrous titania on a titanium metal substrate, removing the need for dispersion and deposition procedures as well as using a low temperature processing method. Depending upon the formulation utilized, a variety of structures can be produced, from thick carpets of nanofiber strands to large platelets. The composition and morphology of the products have been characterized with respect to the growth conditions using electron microscopy, energy dispersive spectroscopy and x-ray diffraction. The compositional analysis is used to investigate the complicated reaction mechanisms in the system. Coatings of titania nanotubes were then tested in the DSSC's, as were those with the titanium metal substrate acting as the photo anode. Modeling the geometric parameters of the different pore structures of the coatings helps us to understand the advantages afforded by these new cells.
PhysicalDescription
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electronic resource
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xii, 175 p. : ill.
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Note
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Ph.D.
Note
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Includes bibliographical references (p. 164-172)
Note
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by Judith D. Sorge
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Sorge
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Judith D.
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1981
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author
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Judith D. Sorge
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Birnie, III
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Dunbar
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chair
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Advisory Committee
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Dunbar P. Birnie, III
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Klein
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Lisa
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internal member
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Advisory Committee
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Lisa Klein
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(type = family)
Cosandey
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(type = given)
Frederic
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internal member
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Advisory Committee
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Frederic Cosandey
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(type = family)
Chhowalla
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(type = given)
Manish
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internal member
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Advisory Committee
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Manish Chhowalla
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Bartynski
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Robert
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outside member
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Advisory Committee
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Robert Bartynski
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Rutgers University
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degree grantor
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Graduate School - New Brunswick
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(authority = RULIB);
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school
OriginInfo
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2009
DateOther
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2009-05
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xx
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NjNbRU
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Title
Rutgers University Electronic Theses and Dissertations
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ETD
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
(type = local)
rucore19991600001
Identifier
(type = doi)
doi:10.7282/T37H1JT6
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
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The author owns the copyright to this work.
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Open
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Non-exclusive ETD license
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Author Agreement License
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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.
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