Browsing FAS Scholarly Articles by Keyword "graphene"
Now showing items 1-10 of 10
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Analysis of Scanned Probe Images for Magnetic Focusing in Graphene
(Springer Nature, 2017)We have used cooled scanning probe microscopy (SPM) to study electron motion in nanoscale devices. The charged tip of the microscope was raster-scanned at constant height above the surface as the conductance of the device ... -
Direct Graphene Growth on Insulator
(Wiley, 2011)Fabrication of graphene devices is often hindered by incompatibility between the silicon technology and the methods of graphene growth. Exfoliation from graphite yields excellent films but is good mainly for research. ... -
Electrical pulse fabrication of graphene nanopores in electrolyte solution
(AIP Publishing, 2015)Nanopores in graphenemembranes can potentially offer unprecedented spatial resolution for single molecule sensing, but their fabrication has thus far been difficult, poorly scalable, and prone to contamination. We demonstrate ... -
Etching of Graphene Devices with a Helium Ion Beam
(American Chemical Society, 2009)We report on the etching of graphene devices with a helium ion beam, including in situ electrical measurement during lithography. The etching process can be used to nanostructure and electrically isolate different regions ... -
Graphene synthesis by ion implantation
(AIP Publishing, 2010)We demonstrate an ion implantation method for large-scale synthesis of high quality graphene films with controllable thickness. Thermally annealing polycrystalline nickel substrates that have been ion implanted with carbon ... -
Imaging Universal Conductance Fluctuations in Graphene
(American Chemical Society (ACS), 2011)We study conductance fluctuations (CF) and the sensitivity of the conductance to the motion of a single scatterer in two-dimensional massless Dirac systems. Our extensive numerical study finds limits to the predicted ... -
Molecule-hugging graphene nanopores
(Proceedings of the National Academy of Sciences, 2013)It has recently been recognized that solid-state nanopores in single-atomic-layer graphene membranes can be used to electronically detect and characterize single long charged polymer molecules. We have now fabricated ... -
Nanoelectronics-Biology Frontier: From Nanoscopic Probes for Action Potential Recording in Live Cells to Three-Dimensional Cyborg Tissues
(Elsevier, 2013)Semiconductor nanowires configured as the active channels of field-effect transistors (FETs) have been used as detectors for high-resolution electrical recording from single live cells, cell networks, tissues and organs. ... -
Relativistic Magnetotransport in Graphene
(American Institute of Physics, 2009)We study the thermal and electric transport of a fluid of interacting Dirac fermions as they arise in single-layer graphene. We include Coulomb interactions, a dilute density of charged impurities and the presence of a ... -
Transition-Metal Single Atoms in a Graphene Shell as Active Centers for Highly Efficient Artificial Photosynthesis
(Elsevier BV, 2017)Utilizing solar energy to fix carbon dioxide (CO2) with water into chemical fuels and oxygen, a mimic process of photosynthesis in nature, is becoming increasingly important but still challenged by the low selectivity and ...