Formalism of dielectric function and depolarization in SWNT

Application to nano-optical switches and probes

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

The paper reviews current theoretical methods to study quasi-electrostatic phenomena in single-wall nanotube systems. Several models are presented to demonstrate importance of selfconsistent calculation of the electric fields for electronic device applications. The quantum mechanical formalism of the dielectric function is chosen to obtain the selfconsistent solution. It gives a unified approach to calculate exciton binding energy, to obtain transverse and longitudinal polarization in the nanotube, to study symmetry breaking and band gap engineering in electric fields, and to perform modelling of ballistic transport in a light-operated switches.

Original languageEnglish (US)
Article number17
Pages (from-to)145-159
Number of pages15
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5509
DOIs
StatePublished - Dec 1 2004
EventNanomodeling - Denver, CO, United States
Duration: Aug 2 2004Aug 3 2004

Fingerprint

Optical Switch
Depolarization
Optical switches
Nanotubes
depolarization
Electric Field
nanotubes
Probe
switches
Electric fields
formalism
electric fields
Exciton
probes
Binding Energy
Ballistics
Band Gap
Binding energy
Symmetry Breaking
Excitons

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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abstract = "The paper reviews current theoretical methods to study quasi-electrostatic phenomena in single-wall nanotube systems. Several models are presented to demonstrate importance of selfconsistent calculation of the electric fields for electronic device applications. The quantum mechanical formalism of the dielectric function is chosen to obtain the selfconsistent solution. It gives a unified approach to calculate exciton binding energy, to obtain transverse and longitudinal polarization in the nanotube, to study symmetry breaking and band gap engineering in electric fields, and to perform modelling of ballistic transport in a light-operated switches.",
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