Index Catalog // Arch : Northwestern University Institutional Repository

Description:: Self-assembly is an important process in biological system to build various bioactive structures from small amphiphilic molecules. The structural versatility of amphiphile self- assembly also provides a unique platform for the design of functional soft materials with controllable structural features. However, little is known about the correlation between external stimuli,...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Changrui Gao
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/30/2019
Date Modified:: 09/30/2019
Date Created:: 1/1/2018
Resource Type:: Dissertation

Description:: This dissertation examines growth of platinum nanoparticles from vapor deposition on SrTiO3 using a characterization approach that combines imaging techniques and X-ray methods. The primary suite of characterization probes includes atomic force microscopy (AFM), grazing-incidence small-angle X-ray scattering (GISAXS), X-ray fluorescence (XRF), scanning electron microscopy (SEM), and X-ray absorption spectroscopy...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Steven Christensen
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/01/2018
Date Modified:: 10/01/2018
Date Created:: 2008-12-08
Resource Type:: Dissertation

Description:: ZnO is a member of the unique class of materials known as transparent conducting oxides (TCOs). TCOs are currently used for many applications including flat panel displays, solar cells, and energy efficient windows. Of particular interest is the possibility of developing materials that have high electron mobilities, such that conductivities...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: David John Cohen
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/01/2018
Date Modified:: 10/01/2018
Date Created:: 2008-12-03
Resource Type:: Dissertation

Description:: A multicomponent bimodal poly(vinyl acetate) (PVAc) polymer composite has been scientifically designed to increase biaxial plastic flow stabilization for the achievement of large biaxial deformations. For this, a systems-based approach was used for the computational materials design of a high performance bubblegum whose mean in-vivo bubble diameter exceeds that of...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Leslie Dale Morget
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/18/2018
Date Modified:: 09/18/2018
Date Created:: 2008-11-25
Resource Type:: Dissertation

Description:: This dissertation demonstrates how self-assembly can direct nanoscale ordering and optimize electronic properties of organic semiconductors, as well as organic-inorganic hybrids. In excitonic solar cells, controlling the ordering and interfaces between electron-transporting (n-type) and hole-transporting (p-type) domains is crucial. In addressing this challenge, hybrid nanostructures were designed by mineralization of...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Marina Sofos
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/30/2018
Date Modified:: 08/30/2018
Date Created:: 2007-12-10
Resource Type:: Dissertation

Description:: The work presented in this dissertation focuses on ceramic anode materials for solid oxide fuel cells (SOFCs). The primary goal was to characterize the anode and relate the electrochemical behavior to the microstructure. The anode that was most extensively studied in this work was a composite of Gd0.10Ce0.90O1.95 (GDC) and...
Keyword:: Materials Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Worawarit Kobsiriphat
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/29/2018
Date Modified:: 08/29/2018
Date Created:: 2007-11-30
Resource Type:: Dissertation

Description:: Oxide surface structures play a key role in many technological processes, including catalysis, thin film growth, and layered structures, and a thorough understanding of surface structures and surface structure dynamics is required in order to better engineer materials systems for these processes. This research works towards understanding these fundamental principles...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Courtney Lanier
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/01/2018
Date Modified:: 08/01/2018
Date Created:: 2007-08-17
Resource Type:: Dissertation

Description:: The optical and magneto-optical properties of the ferromagnetic semiconductors, InMnAs and its alloy InMnAsP were investigated to determine the band structure and nature of the ferromagnetism in these materials. Alloys were grown by metal-organic vapor phase epitaxy. Infrared absorption of InMnAs was investigated to determine the presence and properties of...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Phillip Tang Chiu
Owner:: Scholarly Digital Publishing
Date Uploaded:: 05/22/2018
Date Modified:: 05/22/2018
Date Created:: 2007-04-18
Resource Type:: Dissertation

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