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.
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Showing 1 to 15 of 15 for “"graphene electrodes"”.
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Nanoelectronic Devices using Carbon Nanotubes and Graphene Electrodes: Fabrication and Electronic Transport Investigations
… properties using carbon nanotubes (CNTs) and graphene as electrode materials will be shown. I investigated two types of devices using (i) semiconducting CNTs, and (ii) organic semiconductors (OSC). In the first part of this thesis, I will demonstrate the fabrication of high-performance …
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Fabrication of Hybrid Optical Electrical Platforms for Potential Applications in Neuromodulation
… the visible range (namely Si nano-crystals) and graphene electrodes to control and record neu- ral activity, respectively. The compliant substrates of choice is polydimethylsiloxane (PDMS). Buckled NMs are obtained by guided self-assembly of the supported thin films under compressive strain. The …
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Controlled doping of organic semiconductors and 2d materials with molecular reductants and oxidants
… used to surface modify mono- and multi-layer graphene, which shows a large decrease in the sheet resistance and tunable work function shifts. A subset of these molecules is applied to MoS2 and WSe2 to realize controllable n- and p-doping, respectively, to improve their electrical properties. …
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Theory of molecular-scale transport in graphene nanojunctions
… monolayer (SAM) placed between two electrodes. It has varieties of functionalities due to quantum interference in nanoscale. Although there exist issues, advantages could still appeal to scientists who wish to investigate transport properties in many aspects such as electronics, …
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Graphene as transparent electrodes for solar cells
… in applying chemical vapor deposition (CVD) graphene as the transparent conductor in photovoltaic devices. Transparent conducting oxides currently dominate the transparent conductor market but suffer drawbacks that make them unsuitable certain applications. Graphene is mechanically robust, …
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Under confinement : molecular dynamics investigations of ions and molecules in nanopores and at nanoscale interfaces.
… based structures such as carbon nanotubes and graphene sheets with confined fluids are promising for the enhancement of such technologies. Through molecular dynamics simulations, investigations of aqueous electrolytes in a series of carbon nanotubes were performed, examining ionic current and …
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Oxidative chemical vapor deposition of conductive polymers for use in novel photovoltaic device architectures
… also created using direct deposition of PEDOT electrodes onto small molecule active layer materials yielding fully dry-processed devices. The direct deposition of PEDOT top electrodes has enabled the fabrication of devices on opaque substrates leading to a greater than ten-fold improvement in …
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Functional nanoelectronic devices: single-electron transport, memristivity, and thermoelectricity in nanoscale flms using self-assembly and graphene
… electronic devices. Self-assembly methods and graphene were used to realise devices contacting films of self-assembled PbS quantum dots. The devices have exhibited single-electron tunnelling with a high yield. The electrical properties of the junctions are studied individually and collectively …
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Toward structural design of ultra-thin and flexible sensors
… upon prior work developing stretchable kirigami graphene sensors and flexible temperature-sensing pectin films to further improve their performance, robustness, sensitivity, and application. My first study presents a kirigami-patterned graphene mesh structure that achieves multiaxial …
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Biasing Plasmonic Nanocavities
… around functional molecular junctions where two electrodes are bridged by just a few molecules. How molecules exactly behave in a real junction however is still not well understood, since interactions with the electrode materials and neighbouring molecules at the nanoscale is difficult to model …
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Kelvin Probe Force Microscopy on Graphene Thin Films for Solar Cell and Biosensing Applications
Graphene, a one atom thick planer sheet of carbon atoms, has attracted much attention in scientific and technological communities due to its remarkable electronic and physical properties. Graphene has been widely studied as an alternative to transparent conducting Indium Tin Oxide (ITO) electrodes …
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The Development of Novel Electrochemical Sensors Based on Innovative Materials
… is devoted to the development of laser-induced graphene (LIG)-based electrochemical sensors. It explores the fabrication of three-dimensional (3D) porous laser-scribed graphene electrodes and their functionalization with conducting polymers, such as overoxidized polypyrrole, for the selective …
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Revealing ion transfer kinetics and charge dynamics at operating battery materials through scanning electrochemical microscopy
… the heterogeneous and particulate composition of electrodes applied in real batteries. Among emerging surface tools, scanning electrochemical microscopy (SECM) provides broad opportunity for understanding interphase formation and evolution, measuring single particles, and mapping electrode …
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Novel approaches for the development of sustainable and environmentally friendly antibacterial and antiviral platforms
… biocidal activities of laser-induced graphene (LIG) after being charged at a constant low-voltage potential (1-2 V). Different CO2 laser parameters were employed to produce laser-induced graphene electrodes (LIG) on a polyimide substrate with different electric double layer capacitance …
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Mechanics driven architectures for flexible nanomaterial-based sensors
… electrical and thermal conductors, transparent electrodes, semiconductors, lights absorbers, condensation channels, etc. In this dissertation, I further explore the incorporation of unique mechanics-driven architectures such as strategic folds, creases, notches, and planar placement to engineer …