Index Catalog // ScholarsArchive@OSU

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:: A−H•••B

Enantioselective Total Syntheses of Quinolizidine Lycopodium Alkaloid Cermizine D and Cytotoxic Marine Macrolide Mandelalide A

Creator:: Veerasamy, Nagarathanam
Abstract:: The enantioselective total synthesis of quinolizidine-containing natural product cermizine D and formal syntheses of senepodine G and cermizine C has been achieved. These natural products are members of the lycopodium alkaloids, which have attracted significant attention due to their exciting biological activities and the diverse structural scaffolds. Key steps in...
Resource Type:: Dissertation
Full Text:: these plants for medicinally useful alkaloids.8 N O NH N NH N H lycopodine (1.1) lycodine (1.2

Polyoxoniobates: fundamental solubility trend and their application in solution and on the surface of thin films

Creator:: Rahman, Tasnim
Abstract:: Polyoxometalates (POMs) are anions consisting of three or more early transition metals ™ (Gr V and VI) oxoanions (in their highest oxidation state) linked together by a shared oxygen bond to form a 3D framework. Polyoxometalates (POMs) are a rapidly growing class of metal oxo clusters with a wide range...
Resource Type:: Dissertation
Full Text:: .; Lv, H.; Sullivan, K. P.; Gordon, W. O.; Balboa, A.; Wagner, G. W.; Musaev, D. G.; Bacsa, J.; Hill

The optimization of thin film p-CuO/n-ZnO heterostructures for use in selective gas detection

Creator:: Dandeneau, Christopher S.
Abstract:: Since bulk p-CuO/n-ZnO heterocontacts were first proposed for gas detection, rapid development has taken place in improving the overall functionality of these structures. While bulk heterocontacts have been shown to exhibit desirable sensitivity and selectivity characteristics, these devices suffer from innate diffusion and ZnO/CuO connectivity drawbacks that limit their effective...
Resource Type:: Masters Thesis
Full Text:: Carl Wagner proposed a concept to explain the decomposition of nitrous oxide (N2O) on zinc oxide (ZnO

The Role of Materials Chemistry in Designing Advanced Color Inorganic Pigments

Creator:: Medina, Elena A.
Abstract:: The results of the research presented in this work are related to synthesis and investigations of novel color inorganic pigments having various structures and shades. Inorganic pigments play a major role in contemporary life. They are used in paints, rubber, plastic, cosmetics etc. Searching for new, stable, environmentally benign and...
Resource Type:: Dissertation
Full Text:: Physical Property Measurement System (QD-PPMS)......... 34 2.15 Dielectric material (h – thickness

Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF7 : a new upconversion host, Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF₇ : a new upconversion host

Creator:: Jieratum, Vorranutch
Abstract:: The materials Fe₂(Si,Ge)(S,Se)₄, Cu₃PS[subscript 4-x]Se[subscript x] (0 ≤ x ≤ 4), and Cu₃PxAs[subscript 1-x]S₄ (0 ≤ x ≤ 1) have been synthesized and studied as new earth-abundant absorbers for single and multijunction photovoltaic cells as well as solar fuel generation. The synthesis, single-crystal growth, and optical and electrical properties of...
Resource Type:: Dissertation
Full Text:: to competing technologies, i.e., >20 cents/kW h in a typical polycrystalline-Si PV cell with over

Deposition and characterization of transition metal oxides from aqueous solution

Creator:: Betterton, Sharon A.
Abstract:: The aqueous chemistries of two transition metal cations, Zr⁴⁺ and Nb⁵⁺, are examined and then used to develop inorganic precursor solutions. The oxides of these cations (ZrO₂ and Nb₂O₅) are deposited and characterized, and their morphological and optical properties discussed. Due to the obstacles created by niobium's aqueous chemistry, an...
Resource Type:: Masters Thesis
Full Text:: ; Patrick Fleming, for his support, unwavering faith, Harry Potter addiction, and questionable sense of

High quantum-yield phosphors via quantum splitting and upconversion

Creator:: Jeong, Joayoung
Abstract:: The Gd3+ ion has been used to induce quantum splitting in luminescent materials by using cross-relaxation energy transfer (CRET). In Nd:LiGdF4, quantum splitting results from a two-step CRET between Gd3+ and Nd3+, first involving a transition 6G→6I on Gd3+ and an excitation within the 4f3 configuration of Nd3+ followed by...
Resource Type:: Dissertation
Full Text:: , William H. Warnes, and Milo D. Koretsky. For device testing, everyday interactions, and friendship, I

Transition Metal Oxides for Aqueous Electrochemical Energy Storage

Creator:: Jiang, Heng
Abstract:: In the 21st century, environmental deterioration is now an indisputable fact. Reliable and economically viable electricity systems based on renewable sources are urgently needed to replace the environmentally detrimental fossil fuels. The feasibility of incorporating renewable-but-intermittent solar and wind energy heavily depends on the development of cost-effective and safe technologies,...
Resource Type:: Dissertation
Full Text:: re-arranging H-bonds through water network, (b) Crystal structure of Turnbull’s blue, MII[FeIII(CN

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:: for 30 h. (c) Cycling performance of doped carbons

ScholarsArchive@OSU

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

Enantioselective Total Syntheses of Quinolizidine Lycopodium Alkaloid Cermizine D and Cytotoxic Marine Macrolide Mandelalide A

Polyoxoniobates: fundamental solubility trend and their application in solution and on the surface of thin films

The optimization of thin film p-CuO/n-ZnO heterostructures for use in selective gas detection

The Role of Materials Chemistry in Designing Advanced Color Inorganic Pigments

Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF7 : a new upconversion host, Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF₇ : a new upconversion host

Deposition and characterization of transition metal oxides from aqueous solution

High quantum-yield phosphors via quantum splitting and upconversion

Transition Metal Oxides for Aqueous Electrochemical Energy Storage

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

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