Understanding and Controlling the Electronic Properties of Graphene Using Scanning Probe Microscopy

Abstract

This project has been focused on understanding and controlling the electronic properties of graphene using scanning tunneling spectroscopy and optical spectroscopy. By using boron nitride as a substrate underneath graphene we have significantly improved the device quality. We have found that the periodic potential from the boron nitride can modify the band structure of the graphene. The boron nitride also changes the Raman spectrum of the graphene. We have also explored the role of adding additional layers to graphene and different stacking configurations. A third aspect of the project has studied modification of the graphene band structure through femtosecond laser pulses.

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Document Details

Document Type
Technical Report
Publication Date
Jul 21, 2014
Accession Number
ADA612223

Entities

People

  • Brian J LeRoy

Organizations

  • University of Arizona

Tags

DTIC Thesaurus Topics

  • Band Gaps
  • Band Structures
  • Ceramic Materials
  • Crystal Structure
  • Dispersion Relations
  • Electric Fields
  • Energy Bands
  • Engineering
  • Materials
  • Materials Processing
  • Paper
  • Raman Spectroscopy
  • Scattering
  • Spectroscopy
  • Students
  • Subatomic Particles
  • Valence Bands

Fields of Study

  • Physics

Readers

  • Canadian European Scientific Immigration and Epilepsy Clearance Studies
  • Optical Physics and Photonics.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition
  • Microelectronics
  • Microelectronics - Graphene