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Study the Influence of Quantum Interference on the Electrical Conductance and Thermoelectric Properties of Molecular Junctions : Synthesis and Thermoelectricity

Xu, Hailiang LU (2021)
Abstract
This thesis mainly describes our efforts towards the study of the quantum interference of electronic conductance and thermoelectric properties in molecular junctions.
Chapter 1 introduces the concepts of the charge transport in single-molecule junctions, include the electrical conductivity and thermopower which are the main parameters to assess the efficiency of the single-molecule junctions.
Chapter 2 describes the design and synthesis of the molecules used in the single-molecule junctions, and shows our progress how to tune the electron transport by manipulating the structures of molecules in the single-molecule junctions.
Chapter 3 mainly describes the optimization of the Sonogashira coupling and Ti-mediated functional... (More)
This thesis mainly describes our efforts towards the study of the quantum interference of electronic conductance and thermoelectric properties in molecular junctions.
Chapter 1 introduces the concepts of the charge transport in single-molecule junctions, include the electrical conductivity and thermopower which are the main parameters to assess the efficiency of the single-molecule junctions.
Chapter 2 describes the design and synthesis of the molecules used in the single-molecule junctions, and shows our progress how to tune the electron transport by manipulating the structures of molecules in the single-molecule junctions.
Chapter 3 mainly describes the optimization of the Sonogashira coupling and Ti-mediated functional group transformation for the synthesis of meta-OPE3 derivatives. These derivatives offer a chance to systematically study the correlation between the molecular structures and trasport properties in the single-molecule junctions.
Chapter 4 is aiming at providing a possible strategy for synthesis of β-substituted porphyrins using the MacDonald [2+2] approach and [3+1] method. These porphyrins are designed for the use in the single-molecule junctions.
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author
supervisor
opponent
  • Professor Bröndsted Nielsen, Mogens, Kemisk institut, Köpenhamns universitet
organization
publishing date
type
Thesis
publication status
published
subject
keywords
Molecular junctions, charge transport, electronic conductance, thermoelectricity, destructive quantum interference, acetylene molecules, Sonogashira coupling, Ti-mediated transformation, porphyrin, MacDonald [2+2] approach, [3+1] method
pages
382 pages
publisher
Lund University, Faculty of Science, Department of Chemistry
defense location
KC:B, Lund. Join via Zoom: https://lu-se.zoom.us/j/65453073068
defense date
2021-06-23 09:00:00
ISBN
978-91-7422-820-5
978-91-7422-821-2
language
English
LU publication?
yes
id
bd8b8594-f510-40de-8686-a3334a33146f
date added to LUP
2021-05-27 12:46:23
date last changed
2021-08-18 09:49:00
@phdthesis{bd8b8594-f510-40de-8686-a3334a33146f,
  abstract     = {{This thesis mainly describes our efforts towards the study of the quantum interference of electronic conductance and thermoelectric properties in molecular junctions. <br/>Chapter 1 introduces the concepts of the charge transport in single-molecule junctions, include the electrical conductivity and thermopower which are the main parameters to assess the efficiency of the single-molecule junctions. <br/>Chapter 2 describes the design and synthesis of the molecules used in the single-molecule junctions, and shows our progress how to tune the electron transport by manipulating the structures of molecules in the single-molecule junctions.<br/>Chapter 3 mainly describes the optimization of  the Sonogashira coupling and Ti-mediated functional group transformation for the synthesis of meta-OPE3 derivatives. These derivatives offer a chance to systematically study the correlation between the molecular structures and trasport properties in the single-molecule junctions. <br/>Chapter 4 is aiming at providing a possible strategy for synthesis of β-substituted porphyrins using the MacDonald [2+2] approach and [3+1] method. These porphyrins are designed for the use in the single-molecule junctions.<br/>}},
  author       = {{Xu, Hailiang}},
  isbn         = {{978-91-7422-820-5}},
  keywords     = {{Molecular junctions; charge transport; electronic conductance; thermoelectricity; destructive quantum interference; acetylene molecules; Sonogashira coupling; Ti-mediated transformation; porphyrin; MacDonald [2+2] approach; [3+1] method}},
  language     = {{eng}},
  publisher    = {{Lund University, Faculty of Science, Department of Chemistry}},
  school       = {{Lund University}},
  title        = {{Study the Influence of Quantum Interference on the Electrical Conductance and Thermoelectric Properties of Molecular Junctions : Synthesis and Thermoelectricity}},
  year         = {{2021}},
}