Tags: Graphene

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  1. Application of Cellulosic Materials as Flexible Substrates for Two-Dimensional Electronic Heterostructure Devices

    22 Jan 2018 | Contributor(s):: Beatty, Brian

    Advisors: Eric M Vogel, Meisha L Shofner, Faisal M AlamgirWith the goal of creating a set of materials to enable flexible electronics, two-dimensional (2D) materials are incredibly capable. This family of nanomaterials comprises a suite of strong and flexible conducting, semiconducting, and...

  2. Computational Studies of Transition Metal Nanoclusters on Metal-Supported Graphene Moire

    22 May 2014 | Contributor(s):: Teng, Die

    Advisors: David S. Sholl, Dennis W. Hess, Carsten Sievers, Mark P. Styczynski, Andrew Zangwill, Ye XuThe graphene moire superstructure formed on Ru(0001) (g/Ru(0001)) has shown the potential as a template to self-assemble super-lattices of metal nanoparticles as model catalysts. To explore the...

  3. Controlled Doping of Organic Semiconductors and 2d Materials With Molecular Reductants and Oxidants

    22 Aug 2016 | Contributor(s):: Zhang, Siyuan

    Advisors: Seth R. Marder, David M. Collard, John Reynolds, Zhigang Jiang, Jean-Luc BredasNew air-stable dimeric n-dopants are synthesized and studied in detail with respect to the kinetics of both their redox reaction in solution with and their doping in the solid-state of various organic...

  4. Design of a Novel Electrochemical Cell for Electrochemical Exfoliation of Graphite Into Graphene

    11 Jan 2021 | Contributor(s):: Lopez-Monis, Jose Antonio

    Advisors: Seung Woo Lee, Hailong Chen, Peter J. HeskethThe objective of this thesis is to design and test a new electrochemical cell for the mass production of graphene using electrochemical exfoliation of graphite. Although several techniques have been developed by different research groups,...

  5. Edge State Characterization of Epitaxial Graphene Nanoribbons and Modifications of the Electrical Structure of Buffer Graphene After Aluminum Oxide Deposition

    20 May 2020 | Contributor(s):: Miettinen, Anna L.

    Advisors: Edward Conrad, Phillip N. First, Zhigang Jiang, Markus Kindermann, Antonio TejedaGraphene attracted a great deal of public interest because of its novel electrical characteristics, structural integrity, high electron mobility, and most important for my work, it was shown to be a room...

  6. Electronic Structure and Interlayer Coupling in Twisted Multilayer Graphene

    22 May 2014 | Contributor(s):: Xian, Lede

    Advisors: Mei-Yin Chou, Andrew Zangwill, Edward H. Conrad, Phillip N. First, Angelo BongiornoIt has been shown recently that high-quality epitaxial graphene (EPG) can be grown on the SiC substrate that exhibits interesting physical properties and has great advantages for varies device...

  7. Engineering of Carbon Electronic Devices Using Focused Electron Beam Induced Deposition (FEBID) of Graphitic Nanojoints

    12 Jan 2015 | Contributor(s):: Kim, Songkil

    Advisors: Andrei G. Fedorov, Vladimir V. Tsukruk, Seung Soon Jang, Satish Kumar, Baratunde A. ColaThis thesis concerns development and characterization of the FEBID technique to improve interfacial properties at MWCNT/graphene-metal junctions by forming graphitic nanojoints using hydrocarbon...

  8. Experimental Characterization of Thermal Transport in Two-Dimensional Materials and Thin Films

    20 May 2020 | Contributor(s):: Brown, David Brandon

    Advisors: Satish Kumar, Baratunde A Cola, Samuel Graham, Matthew McDowell, Eric M VogelIncreased power density in modern microelectronics has led to thermal management challenges which degrade performance and reliability. The power consumption and heat removal are limited by the thermal boundary...

  9. Functionalized Graphene for Energy Storage and Conversion

    22 May 2014 | Contributor(s):: Lin, Ziyin

    Advisors: C. P. Wong, John Zhang, Thomas Orlando, David Collard, Meilin LiuGraphene has great potential for energy storage and conversion applications due to its outstanding electrical conductivity, large surface area and chemical stability. However, the pristine graphene offers unsatisfactory...

  10. Functionalized Graphene Materials for High Performance Supercapacitors

    21 Aug 2019 | Contributor(s):: Song, Bo

    Advisors: C. P. Wong, David Collard, John Zhang, Thomas Orlando, Meilin LiuGraphene has been considered as a promising electrode material for supercapacitors due to its outstanding properties. However, graphene produced from reduction of graphene oxide (GO) always suffers from restacking and...

  11. Graphene Near Commensuration

    31 May 2018 | Contributor(s):: Spitz, Stephen Tyler

    Advisors: Markus Kindermann, Phillip N. First, Andrew Zangwill, Michael Pustilnik, Martin ShortFor the past decade, graphene has been among the most heavily researched materials in condensed matter physics. In particular, its unusual electronic properties have spurred researchers to investigate...

  12. Graphene-Based Electrodes for High-Performance Electrochemical Energy Storage

    14 Jan 2020 | Contributor(s):: Lee, Byeongyong

    Advisors: Seung Woo Lee, Hailong Chen, Peter Hesketh, Seung Soon Jang, Thomas FullerGraphene, a two-dimensional honeycomb carbon layer, has drawn intensive attention as a promising electrode material for rechargeable batteries and supercapacitors due to its high electrical conductivity as well as...

  13. Growth and Electronic Properties of Nanostructured Epitaxial Graphene on Silicon Carbide

    13 Jan 2014 | Contributor(s):: Torrance, David Britt

    Advisors: Phillip N. First, Walter de Heer, Andrew Zangwill, Zhigang Jiang, Thomas OrlandoPer request of the author and the advisor, and with the approval of the graduate office, the Acknowledgements page was replaced with an errata.

  14. Highly Structured Nano-Composite Anodes for Secondary Lithium Ion Batteries

    08 Jun 2015 | Contributor(s):: Evanoff, Kara

    Advisors: Gleb Yushin, W. Jud Ready, Tom Fuller, Brent W. Carter, Rosario GerhardtInterest in high performance portable energy devices for electronics and electric vehicles is the basis for a significant level of activity in battery research in recent history. Li-ion batteries are of particular...

  15. Impact of Materials Disorder on Graphene Heterostructure Devices

    11 Jan 2017 | Contributor(s):: Joiner, Corey Alexander

    Advisors: Eric M. Vogel, Vladimir V. Tsukruk, Faisal M. Alamgir, Zhiqun Lin, Zhigang JiangThis work is focused on characterizing the impact of material based disorder on the properties of graphene based vertical tunneling heterostructures. The motivation and challenges for replacing silicon for...

  16. Improved Growth, Ordering, and Characterization of Sidewall Epitaxial Graphene Nanoribbons

    22 Aug 2016 | Contributor(s):: Nevius, Meredith Swegan

    Advisors: Edward H Conrad, Walter de Heer, Phillip First, Zhigang Jiang, Nazanin Bassiri-GharbOne material that has drawn much attention as a viable supplementary material to silicon is graphene, an atom-thick sheet of carbon in a hexagonal lattice. Graphene has many desirable qualities,...

  17. 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...

  18. Multi-Functional PAN Based Composite Fibers

    07 Jan 2016 | Contributor(s):: Chien, An-Ting

    Advisors: Satish Kumar, Anselm Griffin, Donggang Yao, Chuck Zhang, Hangi ChaeVarious nano-fillers can introduce specific functions into polymer and expand their application areas. Myriad properties, such as mechanical, electrical, thermal, or magnetic properties can be combined with original...

  19. Nanostructured Graphene on Si-Terminated SiC and Its Electronic Properties

    27 May 2016 | Contributor(s):: Li, Yuntao

    Advisors: Phillip N First, Zhigang Jiang, Edward H Conrad, Markus Kindermann, Thomas OrlandoGraphene nanostructures directly grown on SiC are appealing for their potential application to nano-scale electronic devices. In particular, epitaxial sidewall graphene nanoribbons have been a promising...

  20. Near Surface Evaluation of Structural, Electronic and Chemical Properties of Templated PT Monolayers

    22 Aug 2016 | Contributor(s):: Vitale, Adam J..

    Advisors: Faisal Alamgir, Eric Vogel, Meilin Liu, Preet Singh, Krista WaltonPlatinum group metals are the choice catalysts for a wide variety of catalytic reactions, including oxygen reduction. The focus of this study is to explore the dimensional aspect of both electronic and structure-driven...