Index Catalog // ScholarsArchive@OSU

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
Full Text:: of Transparent p- and n-type Semiconductors and Luminescent Materials. Abstract approved: New

Aqueous niobium chemistry at low pH : new precursors for oxide thin films

Creator:: Park, Deok-Hie
Abstract:: Phosphate and peroxide stabilize new oxo-hydroxo niobium clusters in water at low pH. The clusters open a new chapter in aqueous niobium chemistry under acidic conditions. The clusters also produce atomically smooth, amorphous niobium oxide phosphate (NbPOx) thin films. Reaction pathways from cluster solutions to amorphous niobium oxide phosphate solids...
Resource Type:: Dissertation
Full Text:: including Rusty Root, Paula Christie, Sarah Burton, Luanne Johnson, Talley Richardson, Margie Haak

New multi-functional chalcogenides for photovoltaic and thermoelectric materials

Creator:: Heo, Jaeseok
Abstract:: The subject of this PhD thesis is part of a research domain of great present interest in new semiconductor materials for photovoltaic and thermoelectric applications. This domain contains the elaboration and the study of both Cu-based chalcogenides bulk and thin-film samples, driven by materials design principles. One of the most...
Resource Type:: Dissertation
Full Text:: similar structural fea- tures, Cu3-V-VI4 (V = P, As, Sb; VI = S, Se) has been discovered as new absorbers

New luminescent materials and high-performance solution-processed oxide thin films

Creator:: Jiang, Kai
Abstract:: Crystals of an incongruent-melting compound, Ba₃MgSi₂O₈, were grown by the flux method and its structure was determined by single crystal X-ray diffraction methods. Ba₃MgSi₂O₈ crystallizes in trigonal space group P-3[bar]m1 with a = 5.6123(3) Å, c = 7.2667(9) Å and Z = 1. Eu²⁺ ions prefer one crystallographic Ba site...
Resource Type:: Dissertation
Full Text:: crystal X-ray diffraction methods. Ba3MgSi2O8 crystallizes in trigonal space group P 3 m1 with a

Metal-oxo Clusters as Novel Photolithographic Materials: How Understanding the Chemistry of HafSOx Informs Next-Generation Patterning Systems

Creator:: Amador, Jenn M.
Abstract:: The solution chemistry and kinetic behavior of hafnium peroxy sulfate solutions ("HafSOx") is described in terms of peroxide content and solution speciation. Additionally, thin film behavior, including thermal behavior and solubility, is characterized, and a mechanism of patterning is presented, as well as parameters that should be considered when looking...
Resource Type:: Dissertation
Full Text:: .; Mathias, J. P.; Seto, C. T. Science, 1991, 254 (5036), 1312- 1319. [2] Whitesides, G. M.; Grzybowski

Aqueous chemistries for oxide electronics

Creator:: Meyers, Stephen T.
Abstract:: The variegated aqueous chemistries of metal cations are applied to the design and synthesis of non-toxic solution precursors suitable for additive printing of large-area oxide electronics. Polycondensation behaviors of aqueous Al+3 and PO4 +3 are manipulated in the deposition of atomically smooth amorphous aluminum oxide phosphate (AlPO) dielectric films. AlPO...
Resource Type:: Dissertation
Full Text:: the office personnel who make the department function. Prof. David Johnson at the University of

Photoresist and ion-exchange chemistry of HafSOx

Creator:: Telecky, Alan J.
Abstract:: The chemistry of hafnium oxide based and materials are described in the context of ion exchange and lithography. HafSOx, represented by the composition HfO₂₋[subscript x](SO₄)x, is described to possess a significant capacity towards ion exchange in acidic and basic solutions, enabling films of HafSOx to be cleanly and readily be...
Resource Type:: Dissertation

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:: , Kristi Edwards, Greg Jones, Linda Adams, Paula Christie, Luanne Johnson, and Talley Richardson

Refractory Amorphous Metal Thin Films

Creator:: Olsen, Kristopher R.
Abstract:: Amorphous metal thin films lack the grain boundaries and dislocations present in crystalline metal films. As a result, amorphous metal films can be more mechanically robust, atomically smooth, and more resistant to chemical attack than crystalline metals. However, amorphous metals are meta-stable and subject to crystallization upon heating, thus limiting...
Resource Type:: Dissertation
Full Text:: , P.; Zhang, W.; Amiya, K.; Kimura, H.; Inoue, A. Nanoscale Patterning of Zr-Al- Cu-Ni Metallic Glass

New solid-state fluorides : synthesis, crystal chemistry, and optical properties

Creator:: Yin, Yaobo
Resource Type:: Dissertation
Full Text:: Press, New York, 1959. 8. Huber, G., and Petermann, K., Tunable Sold State Lasers, Hammerling, P

ScholarsArchive@OSU

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

Aqueous niobium chemistry at low pH : new precursors for oxide thin films

New multi-functional chalcogenides for photovoltaic and thermoelectric materials

New luminescent materials and high-performance solution-processed oxide thin films

Metal-oxo Clusters as Novel Photolithographic Materials: How Understanding the Chemistry of HafSOx Informs Next-Generation Patterning Systems

Aqueous chemistries for oxide electronics

Photoresist and ion-exchange chemistry of HafSOx

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

Refractory Amorphous Metal Thin Films

New solid-state fluorides : synthesis, crystal chemistry, and optical properties

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