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Filtering by: Creator Hong%2C Wei-Li Remove constraint Creator: Hong%2C Wei-Li Advisor Keszler, Douglas A. Remove constraint Advisor: Keszler, Douglas A.

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  • Thin-Film Dielectric Structure of Spin-Coated ZrO2 from Aqueous Inorganic Solution

    Creator:
    Moreno Luna, Hidekel A.
    Abstract:
    An inorganic aqueous precursor for the deposition of ZrO2 thin films via spincoating was developed. Hydrolysis and condensation chemistries of ZrOCl₂·8H₂O were used as the principal reactions to guide the synthesis. Refractive index, n, for a film annealed at 300 °C at 550 nm was measured to be n=1.97 by...
    Resource Type:
    Honors College Thesis
    Full Text:
    ellipsometry and X-Ray reflectivity, Robert for his knowledge in XRD, Wei for his help in electronics

  • Phosphor development : synthesis, characterization, and chromatic control

    Creator:
    Li, Dong
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Dong Li for the degree of Doctor

  • 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:
    . Kettenring, Randy L. Hoffnian, Jun Li, Dr. Lioubov Kabalnova, and Dr. Wei Yan. I am also thankful to the

  • 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:
    Telecky, Sharon Betterton, Wei Wang, and Emmeline Altschul. Life in the lab would have been boring

  • Syntheses and structures of new inorganic borates

    Creator:
    Sun, Hongxing
    Abstract:
    Several new solid-state inorganic borates have been prepared and characterized. Single crystals of the simple orthoborate ScB0₃ were grown and its structure was determined by single-crystal X-ray methods. The new borates Li₃Sc(B0₃)₂, LaSc₃(B0₃)₄, NdSc₃(B0₃)₄, SrNaB0₃, and Li4Ln4MB90₂₃ (Ln = Y, Er, and Gd; M = Al and Ga) were identified...
    Resource Type:
    Dissertation
    Full Text:
    (B03)2 exhibits strings of alternating Sc-centered octahedra and Li-centered rectangular planes. The

  • 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:
    ; Wei Wang, for keeping me focused and kicking my butt into gear; Alan Telecky, for his expertise in

  • Copper and iron chalcogenides for efficient solar absorption

    Creator:
    Platt, Heather A. S.
    Abstract:
    This dissertation outlines two approaches for improving the efficiency and reducing the cost of photovoltaic energy generation. First, the structures of known binary copper and iron compounds are used to choose the promising compositions Fe₂XS₄ (X = Si, Ge), Cu₃TaQ₄ (Q = Se, Te), and BaCuQ'F (Q' = S, Se,...
    Resource Type:
    Dissertation
    Full Text:
    Knutsen, Sharon Betterton, Alan Telecky, Wei Wang, Nutch Jieratum, Annette Richard, Josh Russell, Jack

  • 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
    Full Text:
    fail to recognize the members of the Keszler Research Group. Chris Knutson and Wei Wang, in

  • 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:
    members I interacted with, Stephanie Ramos, Dr. Robert Kokenyesi, Dr. Wei Wang, Dr. Rose Ruther, Dr

  • Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

    Creator:
    Mansergh, Ryan H.
    Abstract:
    Oxo-hydroxo Group 5 metal clusters are an untapped resource to study and advance aqueous solution processing of metal oxide thin films. The tetramethylammonium (TMA) hexatantalate salt (TMA6[H2Ta6O19]) yields dense Ta2O5 films (~95% of the bulk ß-Ta2O5 density) with atomically smooth surfaces (<4 Å root mean square surface roughness). This same...
    Resource Type:
    Dissertation
    Full Text:
    alkali cations (Li, Na, K, Rb, and Cs) and tetrabutylammonium hydroxide (TBAOH). 14,63 For solution