Tags: graphene

Description

Graphene is a one-atom-thick planar sheet of sp2-bonded carbon atoms that are densely packed in a honeycomb crystal lattice. The term Graphene was coined as a combination of graphite and the suffix -ene by Hanns-Peter Boehm, who described single-layer carbon foils in 1962. Graphene is most easily visualized as an atomic-scale chicken wire made of carbon atoms and their bonds. The crystalline or "flake" form of graphite consists of many graphene sheets stacked together.

Learn more about quantum dots from the many resources on this site, listed below. More information on Graphene can be found here.

Online Presentations (1-20 of 41)

  1. Carbon-Based Nanoswitch Logic

    28 Mar 2013 | | Contributor(s):: Stephen A. Campbell

    This talk discusses a rather surprising possibility: the use of carbon-based materials such as carbon nanotubes and grapheneto make nanomechanical switches with at least an order of magnitude lower power dissipation than the low power CMOS options and performance between the various CMOS...

  2. Chemically Enhanced Carbon-Based Nanomaterials and Devices

    09 Nov 2010 | | Contributor(s):: Mark Hersam

    Carbon-based nanomaterials have attracted significant attention due to their potential to enable and/or improve applications such as transistors, transparent conductors, solar cells, batteries, and biosensors. This talk will delineate chemical strategies for enhancing the electronic and optical...

  3. ECE 495N Lecture 21: Graphene Bandstructures

    03 Nov 2008 | | Contributor(s):: Supriyo Datta

  4. ECE 656 Lecture 27: Scattering of Bloch Electrons

    13 Nov 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Umklapp processesOverlap integralsADP Scattering in graphene

  5. ECE 656 Lecture 3: Density of States

    07 Sep 2011 | | Contributor(s):: Mark Lundstrom

    Outline:Density of statesExample: grapheneDiscussionSummary

  6. ECE 656 Lecture 4: Density of States - Density of Modes

    14 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Density of states Example: graphene Density of modes Example: graphene Summary

  7. ECE 659 Lecture 33: Thermoelectricity

    16 Apr 2009 | | Contributor(s):: Supriyo Datta

  8. Electronic and Vibrational Properties of 2D Materials from Monolayer to Bulk: Opportunity Unlimited

    21 Apr 2016 | | Contributor(s):: Mahesh R Neupane

    IWCE 2015 invited presentation. The placement of two dimensional (2D) materials such as hexagonal boron nitride (h-BN) and transition metal dichalcogenide (TMDC) at the forefront of materials and device research was pioneered by the discovery of graphene, an atomically thin 2D allotrope of...

  9. Energy Dissipation at the Nanoscale: from graphene to phase-change materials

    20 Dec 2011 | | Contributor(s):: Eric Pop

    This talk will present recent highlights from our studies of dissipation in novel nanoelectronics based on graphene and phase-change materials. We have investigated both Joule heating and Peltier cooling in graphene electronics, and found that the latter could be tuned to partially remove the...

  10. Graphene: Materials, Physics and Devices of a Unique 2D Electronic System (2DES)

    14 Apr 2015 | | Contributor(s):: Yong P. Chen

  11. How to Turn Graphene into a Robust Topological Insulator Using Adatoms

    12 Jul 2011 | | Contributor(s):: Jason Alicea

    In this talk I will discuss a recent proposal for generating a robust TI state in a more readily available two-dimensional system -- graphene.

  12. Is Graphene Alone in the Universe?

    05 Dec 2012 | | Contributor(s):: Jacob B. Khurgin

    In this talk we show that many heterostructures based on III-V (InGaSb) and II-VI (HgCdTe) semiconductors can be engineered to have all the above properties nearly indistinguishable from those of graphene, while adding certain degree of versatility, such as ability to have not only...

  13. Journey Along the Carbon Road

    19 Apr 2012 | | Contributor(s):: Zhihong Chen

    I will discuss two distinct topics: In the first part of my talk I will present results on carbon nanotubes focusing on high performance computing with the aim to replace silicon in logic device applications. Specifically, the ballistic transport regime that has been reached with the shortest...

  14. Lecture 10: Case study-Near-equilibrium Transport in Graphene

    19 Aug 2011 | | Contributor(s):: Mark Lundstrom

    Near-equilibrium transport in graphene as an example of how to apply the concepts in lectures 1-8.

  15. Lecture 3: Low Bias Transport in Graphene: An Introduction

    18 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Introduction and ObjectivesTheoryExperimental approachResultsDiscussionSummaryLecture notes are available for this lecture.

  16. Lecture 4: Graphene: An Experimentalist's Perspective

    12 Feb 2010 | | Contributor(s):: Joerg Appenzeller

  17. Lecture 5: NEGF Simulation of Graphene Nanodevices

    23 Sep 2009 | | Contributor(s):: Supriyo Datta

  18. Lecture 6: Graphene PN Junctions

    22 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:IntroductionElectron optics in grapheneTransmission across NP junctionsConductance of PN and NN junctionsDiscussionSummary

  19. Levitated Spinning Graphene

    18 Jan 2011 | | Contributor(s):: Bruce E. Kane

    I will describe a method for levitating micron-sized few layer graphene flakes in a quadrupole ion trap. Starting from a liquid suspension containing graphene, charged flakes are injected into the trap using the electrospray ionization technique and are probed optically.

  20. Many Body Effects on Optical Properties of Graphene

    13 Oct 2016 | | Contributor(s):: Subhasis Ghosh

    Graphene, a two-­dimensional (2D) material shows remarkable optical and electronic properties, such as a linear energy dispersion, chirality and half-­integer quantum Hall effect. Multilayer graphene flakes, held together by weak van der Waals forces have also attracted attention due to...