Index Catalog // Arch : Northwestern University Institutional Repository

Description:: Complex fluids are ubiquitous, from natural materials to manufactured products. Understanding their behavior under flow is vital for engineering these materials. Extensional flow, despite being industrially relevant and often producing dominant impacts upon complex fluids, is an underserved topic compared to shear flow due to a lack of reliable apparatuses...
Keyword:: cross-slot flow, carbon nanotube suspension, wormlike micelle, x-ray scattering, planar extensional flow, and lamellar surfactant
Subject:: Chemical engineering
Creator:: Luo, Binbin
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2018-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_624324 and http://dissertations.umi.com/northwestern:14431

Description:: Increasing industrialization and the resulting negative environmental impacts highlight the need to develop alternative renewable energy sources. The Sun is a massive source and organic solar cells are a growing field of study. As new materials are synthesized, the efficiencies of organic solar cells continue to grow, but without an...
Keyword:: x-ray scattering, transient absorption, and organic solar cell
Subject:: Physical chemistry, Chemistry, and Materials Science
Creator:: Lou, Sylvia Jen-Ming
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2018-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_626768 and http://dissertations.umi.com/northwestern:14458

Description:: Polymers permeate almost all facets of modern life. For end use applications, these materials are typically processed into products at elevated temperatures under which molten polymers are subjected to flow. Particular interest lies in the flow-induced crystallization behavior of polymer melts under extensional flow, which is a flow type dominant...
Keyword:: x-ray scattering, flow-induced crystallization, and extensional flow
Subject:: Chemical engineering
Creator:: Kweon, Mu Sung
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2019-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14529 and etdadmin_upload_639972

Description:: Organic Photovoltaic (OPV) materials are of great interest as a low-cost material the purposes of achieving wide spread, solar energy adoption. However, a limiting factor in materials development is the ability to proactively determine the active layer thin film morphology that largely informs device performance. Thus, understanding how materials design...
Keyword:: x-ray scattering, spin coating, in situ, GIWAXS, organic photovoltaics, and morphology
Subject:: Chemistry
Creator:: Eric Fridstein Manley
Owner:: Scholarly Digital Publishing
Date Uploaded:: 04/29/2019
Date Modified:: 04/29/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Description:: Organic Photovoltaic (OPV) materials are of great interest as a low-cost material the purposes of achieving wide spread, solar energy adoption. However, a limiting factor in materials development is the ability to proactively determine the active layer thin film morphology that largely informs device performance. Thus, understanding how materials design...
Keyword:: x-ray scattering, spin coating, in situ, GIWAXS, organic photovoltaics, and morphology
Subject:: Chemistry
Creator:: Eric Fridstein Manley
Owner:: Scholarly Digital Publishing
Date Uploaded:: 04/29/2019
Date Modified:: 04/29/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

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