Organic Thin-Film Transistors and Their Application in Light Detection
08 Sep 2020 | Contributor(s):: Jia, Xiaojia
Advisors: Bernard Kippelen, Gregory Durgin, Elsa Reichmanis, Azad Naeemi, Azadeh AnsariThin-film transistors (TFTs) are widely used in backplane circuits in consumer electronics. As a type of TFTs, organic thin-film transistors (OTFTs) have some unique properties and attract many interests, since...
Engineering Polymer-Nanocellulose Systems Towards Sustainable Devices
20 May 2020 | Contributor(s):: Risteen, Bailey E
Advisors: Elsa Reichmanis, Carson Meredith, Sven Behrens, David Collard, Mohan SrinivasaraoThis thesis explores nanocellulose-polymer systems for use in organic electronics applications. Each chapter provides an understanding of the interactions between polymers and cellulose nanocrystals (CNCs)...
Design, Synthesis and Characterization of Thiazole-Based Conjugated Polymers and Their Applications to N-Channel Organic Electronics
14 Jan 2020 | Contributor(s):: Yuan, Zhibo
Advisors: Elsa Reichmanis, Charles Liotta, David Collard, Stefan France, Natalie StingelinIn the past several decades, p-conjugated organic and polymeric semiconducting materials have attracted significant attention due to their promising electronic and optoelectronic properties. Therefore, their...
Processing Components in P-Conjugated Polymers: Controlling Solubility, Morphology, and Functionality Through Structural Design
21 Aug 2019 | Contributor(s):: Schmatz, Brian J
Advisors: John R Reynolds, Elsa Reichmanis, David M Collard, Zhiqun Lin, Will R GutekunstOver the past 30 years conjugated polymers have demonstrated performance strides in solution-printed photovoltaics, transistors, displays, and sensors. With fundamental structure-property relationships in...
Tailoring Functional P-Conjugated Polymers and Molecules for Organic Photovoltaic Applications
20 Aug 2018 | Contributor(s):: Lo, Chi Kin
Advisors: John R. Reynolds, Jean-Luc Bredas, Seth R. Marder, Elsa Reichmanis, Joseph P. SadighiThe field of organic photovoltaics (OPVs) has developed into an active research topic in applied polymer, materials, and chemical sciences over the past decade due to the continuous improvement in...
A Mechanistic Understanding of Solvent Additives' Influence on Polymer:fullerene Phase Separation for Organic Photovoltaics
31 May 2018 | Contributor(s):: Hernandez, Jeffrey
Advisors: John R. Reynolds, Elsa Reichmanis, Joseph Perry, David Collard, Steven UsselmanSolution processable conjugated organic materials offer a route to low cost electronic devices which include transistors, LEDs, electrochromics, and photovoltaics. The ability of these materials to be...
Analysis of Fibrillar Structures for the Engineering of Polymeric Transistors
22 Jan 2018 | Contributor(s):: Persson, Nils Erland
Advisors: Martha A. Grover, Elsa Reichmanis, Carson Meredith, Joseph Schork, Jye-Chyi LuImage processing software was developed and applied to the analysis of polymer nanofiber microstructures in poly(3-hexylthiophene) (P3HT)-based organic field effect transistors. A large database of processing,...
Organic Electronics Morphology
18 Oct 2017 | Contributor(s):: Nils Persson
Long Range Ordering in Poly(3-Hexylthiophene) Fluids and Films: Implications for Organic Electronics
11 Jan 2017 | Contributor(s):: Kleinhenz, Nabil Joseph
Advisors: John Reynolds, Elsa Reichmanis, Mohan Srinivasarao, Jean-Luc Bredas, David CollardUnderstanding and controlling polymer semiconductor morphology is critical to achieving high charge carrier mobility and enabling widespread use of organic electronic devices such as organic photovoltaics,...
Customized Conjugation: Tailored P-Systems for Organic Electronic Applications
11 Jan 2017 | Contributor(s):: Teran, Natasha Bugna
Advisors: John R. Reynolds, David M. Collard, Stefan A. France, Elsa Reichmanis, Mohan SrinivasaraoThe versatility of the conjugated p-system allows it to be structurally tailored and imbued with properties relevant for organic electronics. Judicious selection of synthons and synthetic...
Nils E. Persson was born in Edina, Minnesota and grew up in nearby Minnetonka before moving to Minneapolis to pursue his B.S.E. in chemical engineering from the University of Minnesota. He is...
Design and Development of Dimeric Sandwich Compounds as N-Dopants for Organic Electronics
27 May 2016 | Contributor(s):: Moudgil, Karttikay
Advisors: Seth R. Marder, John R. Reynolds, Bernard Kippelen, David Bucknall, Jean-Luc BredasElectrical doping of organic semiconductors with molecular oxidants (p-type) or reductants (n-type) can greatly improve charge injection and conductivity in devices. Simple one electron reductants that...
High-Performance Single-Unit and Stacked Inverted Top-Emitting Electrophosphorescent Organic Light-Emitting Diodes
08 Jun 2015 | Contributor(s):: Knauer, Keith Anthony
Advisors: Bernard Kippelen, Oliver Brand, Bruno Frazier, Benjamin Klein, Samuel GrahamThis thesis reports on the design, fabrication, and testing of state-of-the-art, high-performance inverted top-emitting organic light-emitting diodes (OLEDs). The vast majority of research reports focuses on a...
Reading the Rainbow: Tailoring the Properties of Electrochromic Polymers
12 Jan 2015 | Contributor(s):: Kerszulis, Justin Adam
Advisors: John R. Reynolds, Christine Payne, David Collard, Samuel Graham, Vladimir TsukrukThe completion of the color palette has yielded a family of electrochromic polymers (ECPs) each able to absorb in unique regions across the visible spectrum. Synthetically, by varying the electronic content...
Stacked Inverted Top-Emitting White Organic Light-Emitting Diodes
12 Jan 2015 | Contributor(s):: Najafabadi, Ehsan
Advisors: Bernard Kippelen, Andrew Peterson, Ali Adibi, James Kenney, Hamid GarmestaniThe majority of research on Organic Light-Emitting Diodes (OLEDs) has focused on a top-cathode, conventional bottom-emitting architecture. Yet bottom-cathode, inverted top-emitting OLEDs offer some advantages...
Interfacial Engineering of Transparent Electrodes and Nanoparticles With Phosphonic Acids and Metal-Organic Dopants for Organic Electronic Applications
12 Jan 2015 | Contributor(s):: Paniagua Barrantes, Sergio
Advisors: Seth R. Marder, Jean-Luc Bredas, Laren M. Tolbert, Bernard Kippelen, Joseph R. PerryThis thesis focuses on understanding the chemistry involved in a variety of surface modification reactions, both on metal oxides and graphene. In this work, the rates of chemisorption of a prototypical...
Design and Use of Surface Modifiers as Tools for Understanding and Controlling Interfaces in Organic Electronics
22 May 2014 | Contributor(s):: Smith, O'neil Lohanica
Advisors: Seth R. Marder, Joseph W. Perry, Andrew Lyon, Kenneth Sandhage, Vladimir TsukrukThis thesis focuses on the use of surface modifiers as tools for probing and/or controlling interfaces. Surface modification of transparent conducting oxides (TCOs) with organic and organometallic modifiers...
Impact of Process Parameter Modification on Poly(3-Hexylthiophene) Film Morphology and Charge Transport
13 Jan 2014 | Contributor(s):: Lee, Jiho
Advisors: Elsa Reichmanis, Yulin Deng, Dennis W. Hess, William J. KorosOrganic electronics based on p-conjugated semi-conductor raises new technology, such as organic film transistors, e-paper, and organic photovoltaic cells that can be implemented cost-effectively on large-area applications....