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 9 of 9 for “"Graphene FETs"”.
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Choosing a gate dielectric for graphene based transistors
Much attention has recently been focused on graphene as an alternative semiconductor to silicon. Transistors with graphene conduction channels have only recently been fabricated and their performance remains to be optimized. In this thesis, different candidate gate dielectric materials are examined …
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Assembly and integration of two-dimensional nanomaterials for advanced interfaces and sensors
… dimensional (2D) nanomaterials, represented by graphene and transition metal dichalcogenides (TMDCs), have captivated academic and industrial attentions because of their promise in future electronics, surface coating, biosensing, as well as the compatibility with the scalable and low-cost, …
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Investigating electron transport in chemical vapor deposition graphene nanostructures
… properties in chemical vapor deposition (CVD) graphene-related nanostructures. There are many potential electronic and optoelectronic applications envisioned for graphene, due to its two-dimensional character and exceptional properties. However, the lack of scalability of exfoliated graphene …
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Characterization of Graphene Field-Effect Transistors for High Performance Electronics
… that can outperform silicon are required. Graphene, has been suggested as such an alternative mainly due to its two-dimensional (2D) structure and high carrier velocities. The band structure limits achievable bandgaps, preventing digital electronic applications. This, however, does not rule …
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The modification of graphene band structure by periodic potential perturbation
Monolayer graphene has been under the spotlight of research since its discovery in 2004, due to its unusual properties such as massless Dirac fermions, exceptional tensile strength, ultrahigh thermal conductivity, superior charge carrier mobility, remarkable optical properties etc. Graphene-based …
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Influence of van der Waals interfaces on electrical and optical properties of two-dimensional materials
… such as molybdenum disulfide (MoS2) and graphene. Indium and gold metal films were chosen because previous research in the group has demonstrated that indium forms vdW interfaces with 2D materials while gold forms defective non-vdW interfaces. Atomic force microscopy (AFM) and scanning …
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Open-Gate Junction Field-Effect Transistor for Chemical and Biomolecular Analysis
Field-effect transistors (FETs) have emerged as a transformative platform in biosensing, effectively bridging the gap between electronics and biology by measuring the intrinsic charge of bioparticles. The development of FET-based sensing techniques can be traced back to the 1970s with the advent of …
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High Performance Broadband Photodetectors Based on Graphene/Semiconductor Heterostructures
Graphene, a monolayer of carbon atoms, has gained prominence to augment existing chip-scale photonic and optoelectronic applications, especially for sensing in optical radiation, owing to its distinctive electrical properties and bandgap as well as its atomically thin profile. As a building block …
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Understanding and engineering interfacial charge transfer of carbon nanotubes and graphene for energy and sensing applications
Graphene is a one-atom thick planar monolayer of sp2 -bonded carbon atoms organized in a hexagonal crystal lattice. A single walled carbon nanotube (SWCNT) can be thought of as a graphene sheet rolled up into a seamless hollow cylinder with extremely high length-to-diameter ratio. Their large …