Search for dissertations about: "2D graphene"

Showing result 6 - 10 of 48 swedish dissertations containing the words 2D graphene.

  2. 6. Functionalized Graphene as Superlattice and Gas Sensor

    Author : Tianbo Duan; Klaus Leifer; Andrey Turchanin; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; graphene; functionalization; gas sensor; superlattice;

    Abstract : Graphene, an atomic-thin carbon sheet with carbon atoms tightly packed honeycomb-like lattice, has attracted enormous interest due to its unique chemical and physical properties. However, the intrinsic zero bandgap characteristic of graphene has so far prevented graphene from building effective electronic and optoelectronic devices. READ MORE

  4. 7. Computational Studies of 2D Materials : Application to Energy Storage and Electron Transport in Nanoscale Devices

    Author : Vivekanand Shukla; Rajeev Ahuja; Anton Grigoriev; Sudip Chakraborty; Kristian Sommer Thygesen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Density functional theory; Non-equilibrium Green s function; 2D materials; Energy storage; Electron transport;

    Abstract : The field of two-dimensional (2D) layered materials provides a new platform for studying diverse physical phenomena that are scientifically interesting and relevant for technological applications. Novel applications in electronics and energy storage harness the unique electronic, optical, and mechanical properties of 2D materials for design of crucial components. READ MORE

  5. 8. Spin Transport in Two-Dimensional Material Heterostructures

    Author : André Dankert; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Black phosphorous; Topological insulator; h-BN; Silicon; Transistor; Spintronic; MoS2; Graphene; 2D materials; Spin polarized tunnelling; Schottky barrier;

    Abstract : Spintronics is considered as an alternative for information processing beyond the charge based technology. The spintronic device performance depend on the spin relaxation mechanisms in the channel material. Si and graphene are interesting for their long spin coherence lengths and ideal for spin transport channels. READ MORE

  6. 9. Liquid Exfoliation of Molybdenum Disulfide for Inkjet Printing

    Author : Viviane Forsberg; Håkan Olin; Renyun Zhang; Magnus Hummelgård; Joakim Bäckström; Li Yang; Mittuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MoS2; Exfoliation; Inkjet Printing; 2D materials; Environmental Friendly; TMD; thin films; industrial printing; 2D inks; printed electronics; thin films carrier mobility; large-area electronics; graphene analogues; solar cells;

    Abstract : Since the discovery of graphene, substantial effort has been put toward the synthesis and production of 2D materials. Developing scalable methods for the production of high-quality exfoliated nanosheets has proved a significant challenge. READ MORE

  7. 10. Characterization and Functionalization of 2D Overlayers Adsorbed on Transition Metals

    Author : May Ling Ng; Nils Mårtensson; Alexei Preobrajenski; Anne Borg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; h-BN; graphene; transition metals; nanomesh; functionalization; PES; NEXAFS; STM; LEED; Condensed matter physics; Kondenserade materiens fysik; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : Two-dimensional layered materials, namely monolayer hexagonal boron nitride and graphene were grown by CVD on various transition metals. The physical and chemical properties of these systems were characterized systematically using synchrotron-based spectroscopic techniques, scanning tunneling microscopy and low energy electron diffraction. READ MORE