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Description:: The overarching goal of this work is to understand nanometer scale junctions and electron transport through molecules in these junctions. Calculations detailing quantum interference in the electron transport through molecules, and the control of these features, show great potential for use as discrete electronic elements. Concurrent work on the fabrication...
Keyword:: Physical Chemistry
Subject:: Chemistry
Creator:: David Quigley Andrews
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/01/2018
Date Modified:: 10/01/2018
Date Created:: 2008-06-26
Resource Type:: Dissertation

Description:: This work is a research effort aimed at understanding the mechanisms of single-molecule surface-enhanced Raman spectroscopy (SMSERS). In the decade since its discovery in 1997, the role of resonance Raman (RR) enhancement, the origin of blinking, and the properties of the hot spot formed at the junction of two nanoparticles...
Keyword:: Physical Chemistry
Subject:: Chemistry
Creator:: Jon Albert Dieringer
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/20/2018
Date Modified:: 09/20/2018
Date Created:: 2008-12-05
Resource Type:: Dissertation

Description:: The work presented here describes investigations into the interaction of resonant molecules with metallic nanoparticles by localized surface plasmon resonance (LSPR) spectroscopy. The contents of this thesis include the study of the coupling mechanism between molecular resonance and plasmon resonance from experimental and theoretical perspectives and applications of this mechanism...
Keyword:: Physical Chemistry
Subject:: Chemistry
Creator:: Jing Zhao
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/08/2018
Date Modified:: 09/08/2018
Date Created:: 2008-05-08
Resource Type:: Dissertation

Description:: Metalloenzymes catalyze remarkable reactions in Nature using transition metal ions. Common earth-abundant metals like copper, iron, zinc, and magnesium catalyze reactions that are the basis of life. These metal sites lend their chemistries to facilitate these reactions, making studying the structure and properties important in understanding the enzymes' abilities and...
Keyword:: Metalloenzymes, Computations, Biochemistry, Physical Chemistry, Inorganic Chemistry, and Paramagnetic Spectroscopy
Subject:: Chemistry
Creator:: Jodts, Richard Jacob
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 08/23/2023
Date Created:: 2023-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:16659 and etdadmin_upload_1001514

Description:: Plasmonic chemistry is an emerging field of research that contains great promise for new chemical reactivity, but thus far has been improperly observed. The goals of using plasmonic chemistry typically revolve around the use of nonequilibrium charge carriers that migrate to the surface of a plasmonic substrate to perform redox...
Keyword:: Physical Chemistry
Subject:: Chemistry
Creator:: Michael O. McAnally
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/21/2018
Date Modified:: 10/21/2018
Date Created:: 2017-01-01
Resource Type:: Dissertation

Description:: This thesis summarizes our research efforts on the application of the nano-structured anodic aluminum oxide (AAO) membrane in heterogeneous catalysis. Procedures for growing the AAO membrane in the center of an aluminum disc have been developed by appropriately masking the disk's perimeter during the anodization and etching steps. The remaining...
Keyword:: Physical Chemistry
Subject:: Chemistry
Creator:: Hao Feng
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/29/2018
Date Modified:: 08/29/2018
Date Created:: 2007-12-10
Resource Type:: Dissertation

Description:: The work described in this dissertation focuses on the optical characterization of micron-sized structures with mesoscale (100-1000 nm) features to investigate of the optical analog to the quantum corral. Lithographically patterned arrays of metallic rings and ellipses were used to study how light can be manipulated and confined within these...
Keyword:: Physical Chemistry
Subject:: Chemistry
Creator:: Yelizaveta Babayan
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/28/2018
Date Modified:: 08/28/2018
Date Created:: 2007-12-10
Resource Type:: Dissertation

Description:: The work described here includes both fundamental and application based studies centered around the use of plasmonic sensors. Fundamental studies focus on probing the optical properties of nanosphere lithography (NSL) fabricated Ag nanoparticles, while surface-enhanced Raman spectroscopy (SERS) sensors are applied to identify and characterize artists' red dye and red...
Keyword:: Chemistry and Physical Chemistry
Subject:: Chemistry
Creator:: Alyson Victoria Whitney
Owner:: Scholarly Digital Publishing
Date Uploaded:: 06/05/2018
Date Modified:: 06/05/2018
Date Created:: 2007-05-08
Resource Type:: Dissertation

Description:: With the dual challenges of meeting global energy demand and mitigating anthropogenic climate change, significant effort is being applied to generating power from renewable sources. The dye-sensitized solar cell (DSC) is a photovoltaic technology capable of generating electricity from sunlight, but suffers losses in efficiency due to deleterious electron transfer...
Keyword:: Alternative Energy, Material Science, and Physical Chemistry
Subject:: Chemistry
Creator:: William L. Hoffeditz
Owner:: Scholarly Digital Publishing
Date Uploaded:: 03/13/2018
Date Modified:: 03/13/2018
Date Created:: 2017-01-01
Resource Type:: Dissertation

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