Index Catalog // ScholarsArchive@OSU

Transient electric birefringence for the characterization of cellulose nanocrystals and tobacco mosaic virus

Creator:: Taylor, Melissa J.
Abstract:: The development of a transient electric birefringence (TEB) apparatus for macroparticle characterization is herein discussed. The experimental difficulties encountered were related largely to poor data resolution. Misalignment and strain birefringence in optical components further complicated results. Improved data digitization methods were developed, and precise mathematical models were derived in order...
Resource Type:: Dissertation
Full Text:: High and low frequency dependence of phase angle. . . . . . . . . . . . . 54 4.1.1.1 Hydrochloric acid

High-Energy Lithium-Sulfur Batteries and Non-Metallic Ion Aqueous Batteries: Integrating Experiment and Theoretical Modeling

Creator:: Shin, Woochul
Abstract:: Humanities have been craving more freedom and conveniences in whatever form. Carriages evolved to cars and ultimately to aircraft so that one can reach any place in the globe within a day. The mobile phone has enabled people to make a phone call without a need to find a phone...
Resource Type:: Dissertation
Full Text:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.6 Contact angle measurement using 1 M LiTFSI + 0.1 M LiNO3 in the DOL/DME electrolyte in

Synthesis and study of transparent p- and n-type semiconductors and luminescent materials

Creator:: Park, Cheol-Hee
Abstract:: New transparent p- and n-type semiconductors and luminescent materials have been prepared and characterized. Synthesis, structures, optical and electrical properties of new chalcogenide fluoride p-type transparent semiconductors MCuQF (M=Ba, Sr; Q=S, Se, Te) are described. Band-gap tuning and improvement in conductivity through p-type doping are demonstrated in the family. The...
Resource Type:: Dissertation

Precursor Chemistry and Film Structure and Properties via Solution Deposition

Creator:: Huang, Yu
Abstract:: Chemistry of preparing dense film from solution deposition is explored with several cases in this thesis. Surface dense structure, conversion at melting point, and ion exchange in aqueous solution are the main topics covered here for the thin films of aluminum oxide phosphate and tin dioxide. Thin film density, optical...
Resource Type:: Dissertation
Full Text:: Variable angle spectroscopic ellipsometry was conducted on a J.A. Woollam M2000X to measure thin film

Development of fragmentation techniques in mass spectrometry for biological applications

Creator:: Ji, Hong
Abstract:: In this dissertation, I present the work of developing more efficient and economical techniques for fragmenting large bio-molecules, and ultimately making mass spectrometry a more powerful tool in proteomics, DNA sequencing, and other areas of biomolecular analysis. Aiming at lowering the installation and operating cost, and delivering electron capture dissociation...
Resource Type:: Dissertation

Tracking Excited State Proton Transfer and Inhibition with Ultrafast Raman and Transient Absorption Spectroscopy

Creator:: Oscar, Breland G.
Abstract:: In this dissertation, excited state proton transfer (ESPT) and its inhibition in solution and protein environments are revealed using both femtosecond transient absorption (fs-TA) spectroscopy and femtosecond stimulated Raman spectroscopy (FSRS). Using a tunable Raman pump to enhance transient vibrational features of the photoacidic chromophore HPTS in methanol and methanol...
Resource Type:: Dissertation
Full Text:: describe acid-base chemistry, such as the Lewis acid electron acceptor definition. In general, the

Part I: Synthetic studies toward the southern portion of Azaspiracid-1; Part II: Total synthesis of amphidinolide B₁ and the proposed structure of amphidinolide B₂

Creator:: Lu, Liang
Abstract:: The structural architecture present in marine toxin azaspiracid - 20 stereocenters, 9 rings, 3 separated spirocenters - has attracted considerable synthetic attention. Our efforts toward the synthesis of azaspiracid have led to the completion of both C₁-C₂₆ northern and C₂₇-C₄₀ southern halves. Herein, the synthesis of southern FGHI ring system...
Resource Type:: Dissertation
Full Text:: Lewis acids (TiCl4 or SnCl4) promoted aldol reaction between aldehyde 2.6 and allyl silane 2.7

Excited state molecular structural evolution and chemical reactivity studied by femtosecond stimulated Raman spectroscopy

Creator:: Han, Fangyuan
Abstract:: In this dissertation, my research work on excited state dynamics of small organic molecules in solutions is presented. Using femtosecond stimulated Raman spectroscopy (FSRS) as the main experimental tool, the excited state hydrogen-bonding dynamics (ESHBD) of Coumarin 102, a common laser dye molecule, in ethanol solution is examined with <150...
Resource Type:: Dissertation
Full Text:: more hydrogen atoms attached. The acceptor can be a Lewis base which has electron lone pairs, or

Fundamental Studies of the Structure-Property Correlations of Na-ion and K-ion Storage in Non-Graphitic Carbon

Creator:: Li, Zhifei
Abstract:: Grid-scale energy storage systems are urgently needed to increase the flexibility and rigidity of the grid for modern society and take full advantage of the renewable green energy resources such as solar energy and wind energy. Na-ion batteries (NIBs) and K-ion batteries (KIBs) have been emerged as one of the...
Resource Type:: Dissertation
Full Text:: angle, which indicates a larger d-spacing. However, B-doping barely shifts the peak

Tracking Photoinduced Primary Events with Femtosecond Stimulated Raman Spectroscopy and Calculations

Creator:: Wang, Yanli
Abstract:: Femtosecond stimulated Raman spectroscopy (FSRS) is a powerful ultrafast technique which can track photoinduced excited state structural events on femtosecond (fs) to picosecond (ps) timescales. In addition to high temporal and spectral resolutions, FSRS provides a broad spectral window from ca. 100—2000 cm-1 for detection, enabling the direct mapping of...
Resource Type:: Dissertation

ScholarsArchive@OSU

Transient electric birefringence for the characterization of cellulose nanocrystals and tobacco mosaic virus

High-Energy Lithium-Sulfur Batteries and Non-Metallic Ion Aqueous Batteries: Integrating Experiment and Theoretical Modeling

Synthesis and study of transparent p- and n-type semiconductors and luminescent materials

Precursor Chemistry and Film Structure and Properties via Solution Deposition

Development of fragmentation techniques in mass spectrometry for biological applications

Tracking Excited State Proton Transfer and Inhibition with Ultrafast Raman and Transient Absorption Spectroscopy

Part I: Synthetic studies toward the southern portion of Azaspiracid-1; Part II: Total synthesis of amphidinolide B₁ and the proposed structure of amphidinolide B₂

Excited state molecular structural evolution and chemical reactivity studied by femtosecond stimulated Raman spectroscopy

Fundamental Studies of the Structure-Property Correlations of Na-ion and K-ion Storage in Non-Graphitic Carbon

Tracking Photoinduced Primary Events with Femtosecond Stimulated Raman Spectroscopy and Calculations

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