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Filtering by: Creator Ashcroft, Michael B. Remove constraint Creator: Ashcroft, Michael B. Committee Member Lerner, Michael Remove constraint Committee Member: Lerner, Michael Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Structure-property relationships of layered oxypnictides

    Creator:
    Muir, Sean W.
    Abstract:
    Investigating the structure-property relationships of solid state materials can help improve many of the materials we use each day in life. It can also lead to the discovery of materials with interesting and unforeseen properties. In this work the structure property relationships of newly discovered layered oxypnictide phases are presented...
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    Dissertation
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    diffraction. Structure refinement reveals that there is significant disorder within the a-b plane for Sb

  • Detection techniques for biomolecules using semi-conductor nanocrystals and magnetic beads as labels

    Creator:
    Chatterjee, Esha
    Abstract:
    Continued interest in the development of miniaturized and portable analytical platforms necessitates the exploration of sensitive methods for the detection of trace analytes. Nanomaterials, on account of their unique physical and chemical properties, are not only able to overcome many limitations of traditional detection reagents but also enable the exploration...
    Resource Type:
    Dissertation
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    . Michael Lerner, Dr. Chih-hung (Alex) Chang, Dr. Neal Sleszynski and Dr. Michael Qian, members of my

  • Tuning Functional Properties of Pyrochlore and Related Oxides via Cation and Anion Substitutions

    Creator:
    Giampaoli, Gabriella C. S.
    Abstract:
    Inorganic structures play an important role in materials due to their versatility and diversity. A complete understanding of the structure of a material is vital to enhance the creation of new materials that fill voids in research. The rational design of these compounds is driven by the exploitation of structure-property...
    Resource Type:
    Dissertation
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    3.108 μB to 3.513 μB for x = 1 to 0.2. Many materials in the general series Bi2-xCaxM2-xM'xO7 (M = Ti

  • Structure-property Relationships of Transition Metal Oxides Containing Precious Metals

    Creator:
    Hapuraja Pathirannehelage, Vidhara H. P.
    Abstract:
    This dissertation presents a study of structure-property relationships within 3d/4d metal oxides containing precious metals through detailed structure refinements using high-resolution neutron and X-ray diffraction data along with exploration of the resultant properties. Oxides of 4d or 5d transition metals tend to show new topological phases due to significant spin-orbit...
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    Dissertation
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    0.38 μB, and further studies are necessary to determine the actual oxidation states of Rh and Mn and

  • Femtosecond Stimulated Raman Studies of Excited State Structural Events

    Creator:
    Tang, Longteng
    Abstract:
    Femtosecond stimulated Raman spectroscopy (FSRS) is an ultrafast vibrational technique which allows rapid collection of Raman spectra with simultaneously high temporal and spectral resolution. With the recent development of FSRS methodology, three FSRS techniques (conventional, tunable, and anti-Stokes) have been implemented in our laboratory to dissect the excited state structural...
    Resource Type:
    Dissertation
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    thank Professor Michael Lerner, Professor Yun-Shik Lee and Professor Chih-hung Chang for severing on

  • Functional transition metal oxides : structure-property relationships

    Creator:
    Smith, Andrew E.
    Abstract:
    Transition metal oxides are an important class of materials for the wide variety optical, electrical, dielectric, magnetic, and thermal properties observed. Their unique structure-property relationships allow for property tuning and often provide insight into the fundamentals of chemistry. The work in this thesis was focused on the design, synthesis and...
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    Dissertation
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    such a remarkable scientist. I also thank Dr. Michael Lerner, Dr. Janet Tate, Dr. Philip Watson, Dr

  • Preparation and Properties of Porous Carbon Materials

    Creator:
    Xing, Zhenyu
    Abstract:
    Porous carbon is indispensable in modern technology applications. It is used for energy storage, gas separation, water purification, catalyst support, and chromatography. The diversity of its applications stems from its unique properties, including high specific surface area, tunable pore volume, and chemical stability. Specifically, the large surface area provides high...
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    Dissertation
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    Michael Lerner, Professor May Nyman, and Professor Chih-Hung Chang. I would also thank Professor

  • Electrolyte Design: Improving Capacity and Structural Stability of Electrodes

    Creator:
    Xu, Yunkai
    Abstract:
    The grand plan of carbon neutralization and COP26 in Glasgow require a quick shift of energy sources from conventional fossil fuel to a more renewable substitute such as wind, or solar energy. However, the intermittency of those renewable energy sources does not meet the demand of the energy, which requires...
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    Dissertation
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    also like to thank Dr. Michael Lerner, for asking questions and giving suggestions during the group

  • Cation Substitution Effects in Complex Transition Metal Oxides

    Creator:
    Duell, Brett A.
    Abstract:
    Understanding structural evolution in solids as composition changes is essential to materials properties prediction. Such structure-properties relationships are the theme of solid state chemistry. Materials scientists and chemists have utilized an abundance of simple crystal structures to enhance understanding of chemical and structural origins of properties in materials for decades....
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    Dissertation
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    committee members, Drs. Michael Lerner, David Ji, Brady Gibbons, and William Warnes for the time they have

  • Structure-Property Relationships of Disordered Electronic Materials : From Crystalline to Amorphous

    Creator:
    Surta, Todd Wesley, Jr.
    Abstract:
    Two perovskite materials (Bi0.5(A)0.5)(Sc0.5Nb0.5)O3, where A = K+ and Na+ were synthesized phase pure for the first time. Their structures were determined by indexing synchrotron X-ray diffraction data and subsequent combined Rietveld refinement on neutron and synchrotron X-ray diffraction data revealing significant disorder on the A-sites of these materials. A...
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    Dissertation
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    properties, b) the temperature dependence of polarization, and c) dielectric properties between relaxors