Index Catalog // Arch : Northwestern University Institutional Repository

Biological and Environmental Implications and Applications of Two-Dimensional Layered Nanomaterials

Description:: To accelerate the implementation of technologies enabled by two-dimensional (2D) nanomaterials, the human health and environmental implications of these materials need to be addressed. Fundamental studies which elucidate the mechanisms of toxicity and environmental fate will allow for the safer design of these materials and promote their widespread use. This...
Keyword:: environmental fate, toxicity, biomaterials, 3D printing, and two-dimensional nanomaterials
Subject:: Materials Science and Engineering
Creator:: Linda M Guiney
Owner:: Scholarly Digital Publishing
Date Uploaded:: 11/19/2019
Date Modified:: 11/19/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Synthesis and Characterization of Hybrid Organic-Inorganic Structures for Photovoltaic Devices

Description:: Developing low-cost, scalable, high-efficiency photovoltaic materials is an important technological challenge because of the projected increase in global energy consumption in coming years, the environmental cost of carbon emissions, and the widespread availability of solar energy. This dissertation contains three studies on the development of novel hybrid materials as photovoltaic...
Keyword:: Hybrid materials, Perovskite, and Photovoltaic
Subject:: Materials Science and Engineering
Creator:: Daniel Joseph Fairfield
Owner:: Scholarly Digital Publishing
Date Uploaded:: 11/19/2019
Date Modified:: 11/19/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Non-equilibrium thermodynamics of Quench and Partition (Q&P) steels

Description:: In support of a scientific foundation for the predictive design of composition and processing of quench and partition (Q&P) martensite/austenite TRIP steels, theory of coupled diffusional/displacive transformation is experimentally calibrated to control austenite carbon content and its associated mechanical stability. Under paraequilibrium constraint, the calibration quantifies an effective BCC stored...
Keyword:: austenite stability, quench and partition, steels, paraequilibrium, and carbon partitioning
Subject:: Materials Science and Engineering
Creator:: Amit Behera
Owner:: Scholarly Digital Publishing
Date Uploaded:: 11/04/2019
Date Modified:: 11/04/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Local Mechanical Properties Characterization of Soft Polymeric Material via Atomic Force Microscopy Nanoindentation and Finite Element Simulations

Description:: In polymer nanocomposites (PNCs), the physical and chemical interactions at the polymer matrix-filler interface lead to local variations in polymer properties, creating a substantial interphaseregion in the vicinity of the interface. Quantifying the significance of the interphase effect in the presence of substrates or nanoparticles is of essential importance in...
Keyword:: Interphase, Polymer nanocomposites, Finite element analysis, Atomic Force Microscopy, and Confinement effects
Subject:: Materials Science and Engineering
Creator:: Min Zhang
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/28/2019
Date Modified:: 11/20/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Stability of Graphene Oxide Membranes in Water: The Mystery, the Answer, and the Implications.

Description:: Graphene oxide (GO), a product of oxidative exfoliation of graphite powders, has received significant attention due to its excellent solution dispersibility, rich functionality, and ease of conversion to chemically modified graphene (also known as œreduced graphene oxide or œr-GO). These properties make GO an attractive building block for constructing various...
Keyword:: Nanotechnology, Two-dimensional materials, Carbon materials, Graphene, and Graphene oxide
Subject:: Materials Science and Engineering
Creator:: Che-Ning Yeh
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/28/2019
Date Modified:: 11/20/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Intermolecular Charge Transfer: A Design Motif for the Study of Organic Ferroelectricity, Semiconductivity and Exchange in Supramolecular Assemblies

Description:: Intermolecular charge transfer between electron-rich donor and electron-poor acceptor molecules offer great promise in the development of novel, low-cost electronic materials. It is hypothesized that control over the intermolecular interactions and supramolecular self-assembly of these systems could tune electronic properties and discover new functions. To that end, a series of...
Keyword:: self-assembly, semiconducting, charge transfer, ferroelectric, and supramolecular
Subject:: Materials Science and Engineering
Creator:: Ashwin Narayanan
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/28/2019
Date Modified:: 10/28/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Graphene Hydrogel Materials for Next Generation Energy Storage Devices

Description:: Electrochemical energy storage devices have become increasingly relevant to the operation and sustainability of the modern world, as proliferation of mobile electronics, renewable electrical energy generators, electrical vehicles, and various high-tech bio-medical sensing device continues. The widespread need of easier to produce, better performing, and multifunctional energy storage materials in...
Keyword:: battery, graphene, carbon, supercapacitor, and energy storage
Subject:: Materials Science and Engineering
Creator:: Yue Yang Yu
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/21/2019
Date Modified:: 10/21/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Large-Strain Deformation Mechanics of Charge-Containing Polymer Membranes

Description:: The use of polymeric membranes have become ubiquitous in our daily lives. From simple chip bags to million-dollar cockpits, these membranes find diverse applications in packaging, protective coating, electronic device, gas and liquid separation, and medicine. The 2-dimentional geometry of the membranes offered unique mechanical and interfacial properties that often...
Keyword:: water treatment, polyelectrolyte, fracture mechanics, large-strain deformation, block ionomer, and structure-property relationship
Subject:: Materials Science and Engineering
Creator:: Shawn H Chen
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/21/2019
Date Modified:: 10/21/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Understanding Atomic Structure and Structural Evolution of Perovskite Oxides at the 2-D Limit: From Surface to Thin Film

Description:: Perovskite oxide materials for the wide array of properties that make them candidate materials for application ranging from catalysis, to electronics, to beyond-Moore computation. As many of these oxides share similar structures they can be combined in a seemingly-endless number of ways to produce the desired properties for a given...
Keyword:: surface structure, perovskites, oxide structure, SrTiO3, density functional theory, and hybrid molecular beam epitaxy
Subject:: Materials Science and Engineering
Creator:: Tassie K.1 Andersen
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/08/2019
Date Modified:: 10/08/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Patterning and Characterization of Reconfigurable Nanoparticle Assemblies

Description:: The assembly of nanoscale building blocks into larger ensembles with well-defined architecture has the potential to create entirely new classes of designer photonic and plasmonic metamaterials with unique properties not found in nature. Electromagnetic metasurfaces, or 2D metamaterials, operating at optical wavelengths are of particular interest due to ease of...
Keyword:: Nanotechnology, Nanoparticles, Nanopatterning, Directed Assembly, Self-Assembly, and Electron Microscopy
Subject:: Materials Science and Engineering
Creator:: BENJAMIN MYERS
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/08/2019
Date Modified:: 10/08/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

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Biological and Environmental Implications and Applications of Two-Dimensional Layered Nanomaterials

Synthesis and Characterization of Hybrid Organic-Inorganic Structures for Photovoltaic Devices

Non-equilibrium thermodynamics of Quench and Partition (Q&P) steels

Local Mechanical Properties Characterization of Soft Polymeric Material via Atomic Force Microscopy Nanoindentation and Finite Element Simulations

Stability of Graphene Oxide Membranes in Water: The Mystery, the Answer, and the Implications.

Intermolecular Charge Transfer: A Design Motif for the Study of Organic Ferroelectricity, Semiconductivity and Exchange in Supramolecular Assemblies

Graphene Hydrogel Materials for Next Generation Energy Storage Devices

Large-Strain Deformation Mechanics of Charge-Containing Polymer Membranes

Understanding Atomic Structure and Structural Evolution of Perovskite Oxides at the 2-D Limit: From Surface to Thin Film

Patterning and Characterization of Reconfigurable Nanoparticle Assemblies

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