Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Physics (2)
- AFM (1)
- Atomic force microscopy (1)
- Bilayer graphene (1)
- Capacitance (1)
-
- Carbon (1)
- Clean energy (1)
- Collimation (1)
- Complex electrolytes (1)
- Cylindrical capacitance (1)
- Debye length (1)
- Double layer capacitance (1)
- Double layer capacitors (1)
- Electrolytic solutions (1)
- Field effect transistor model (1)
- Graphene (1)
- Incident light (1)
- Interference (1)
- Ionic fluids (1)
- KPFM (1)
- Kelvin probe force microscopy (1)
- Linear capacitance (1)
- Moiré pattern (1)
- Monolayer graphene (1)
- Reflected light (1)
- Reflective efficiency (1)
- Roughness (1)
- Solar cells (1)
- Stern layer (1)
- Supercapacitors (1)
Articles 1 - 3 of 3
Full-Text Articles in Engineering Physics
Exploring The Electrical Properties Of Twisted Bilayer Graphene, William Shannon
Exploring The Electrical Properties Of Twisted Bilayer Graphene, William Shannon
Senior Theses
Two-dimensional materials exhibit properties unlike anything else seen in conventional substances. Electrons in these materials are confined to move only in the plane. In order to explore the effects of these materials, we have built apparatus and refined procedures with which to create two-dimensional structures. Two-dimensional devices have been made using exfoliated graphene and placed on gold contacts. Their topography has been observed using Atomic Force Microscopy (AFM) confirming samples with monolayer, bilayer, and twisted bilayer structure. Relative work functions of each have been measured using Kelvin Probe Force Microscopy (KPFM) showing that twisted bilayer graphene has a surface potential …
Measuring The Double Layer Capacitance Of Electrolytes With Varied Concentrations, Geoffrey Rath
Measuring The Double Layer Capacitance Of Electrolytes With Varied Concentrations, Geoffrey Rath
Senior Theses
When electric potentials are applied from an electrolytic fluid to a metal, a double layer capacitor, Cdl, develops at the interface. The layer directly at the interface is called the Stern layer and has a thickness equal to roughly the size of the ions in the fluid. The next layer, the diffuse layer, arises from the gathering of like charges in the Stern layer. This layer is the distance needed for ionic charges to return to equilibrium. This distance, called the Debye length, λ, depends on the square root of the electrolyte concentration. To study the properties of …
Reflective Efficiencies Of Materials For Applications Of Bifacial Solar Cells, Michael Metter
Reflective Efficiencies Of Materials For Applications Of Bifacial Solar Cells, Michael Metter
Senior Theses
The bifacial solar cell is superior to its monofacial predecessor due to its ability to convert both incident light on top and reflected light from below into energy. The scattering of the reflected light is affected by the property of the material on which it is interacting. To date, little work has been contributed to studying the properties of these materials to determine optimal quantities for bifacial solar cells. In the first experiment, reflective efficiencies compared to the angle of reflection were explored for different grit of sandpaper in order to develop an understanding of how surface texture impacts reflectivity. …