Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"graphene transfer"”.
-
Large-scale graphene transfer in ultra-high vacuum and design of a low temperature ultra-high vacuum scanning tunneling microscope
This thesis documents a way of transferring large-scale graphene onto clean surfaces in an ultra-high vacuum scanning tunneling microscope chamber via a modified direct contact transfer method. A polyethylene terephthalate (PET) film was chosen as the material for supporting graphene during the …
-
Kontakto grafenas – metalas formavimas ir elektrinių savybių tyrimas /
In this work, graphene - metal contact theory and recent publications in this field are discussed. Short introduction into graphene structure and its monolayer synthesis as well as graphene transfer methods using polymer coatings are presented. The main idea of this research is to form a graphene – …
-
Radiation damage assessment of atomically thin membranes
… data collection for each transport measurement. Graphene is transferred onto high pore density polyimide (-50 nm pore diameter, 6E9 pores cm⁻²) and is imaged with a scanning electron microscope (SEM) to assess graphene transfer fidelity. It is found that graphene coverage (defined as the fraction …
-
Graphene-assisted spontaneous relaxation and direct CVD growth of graphene on III-V substrate
… We have observed that heteroepitaxy on graphene-coated substrates allows for spontaneous relaxation of misfit strain owing to the slippery graphene surface while achieving single-crystalline films by reading the atomic potential from the substrate. This spontaneous relaxation technique …
-
Integrated Growth and Process Technology for Atomically Thin Single Crystal Films
Graphene has been found to have a wide range of potential applications owing to its unique physical properties. Whilst pioneering lab-scale experiments have demonstrated and leveraged these interesting properties, there is still a significant gap in performance between the one-off exfoliated hero …
-
Processes and Materials for Organic Photovoltaics
… In addition, the possibilities of integrating graphene, the two-dimensional form of carbon, into OPV architectures is discussed. A new process for graphene transfer that allows the integration of graphene into chemically and physically more fragile systems including those composed of small …
-
Galvanic Displacement Across Single-Layer Graphene
… reactions as buffered by a monolayer of graphene, specifically by investigating palladium deposition on graphene on a copper foil substrate via galvanic displacement between the copper and palladium (II) ions in solution. To understand palladium nanoparticle deposition and determine how …
-
Design, Fabrication, and Characterization of an Array of Graphene Based Variable Capacitors
… it was first isolated and characterized in 2004, graphene has shown the potential for a technological revolution. This is due to its amazing physical properties such as high electrical conductivity, high thermal conductivity, and extreme flexibility. Freestanding graphene membranes naturally …
-
Photolithography and surface modification applications of a 172 nanometer xenon microplasma excilamp
… particular, when germanium, gallium nitride and graphene were exposed to the lamp under different conditions, the native oxide on germanium was removed, while gallium nitride had its binding energies modified. The lamp also has important implications for graphene transfer process utilizing PMMA. …
-
Towards high performance graphene nanoelectronics: materials, contacts and interfaces
… nanomaterials. More specifically, graphene has been at the forefront of this development for a wide range of macro and nanoelectronic applications due to a combination of unique electrical and thermal properties and an atomically thin lattice (~3.4 Å). Some of these applications …
-
Electrostatic transfer of graphene grown on copper foil and nanosoldering of carbon nanotube junctions
… Particularly, the presented techniques involve transferring graphene grown on copper foil using electrostatic force and improving the junction resistance of carbon nanotube (CNT) networks by nanosoldering. Typically, transferring graphene grown on metal substrates involves wet etching steps in …
-
Formation of three-dimensional graphene structures by controlled thermal activation of polymeric shape memory substrates
… three-dimensional (3D) texturing of graphene and graphite by using thermally-activated shape-memory polymers as the underlying substrate and the material characterizations thereof. Uniform, large area arrays of textured 3D graphene crumple features can be created on the centimeter …