Optical Properties of CdS Nanostructures Crystallized in the Pores of Insulating Template

Abstract

The characteristic features of the luminescence spectra obtained at different polarization of the exciting light beam and time resolved luminescence spectra of CdS nanocrystals crystallized in 8-10 nm diameter hollow channels of a dielectric Al2O3 template have been explained in terms of exciton transitions in semiconductor dielectric quantum wires. In these structures the dielectric confinement effect leads to a considerable increase of the exciton binding energy - the Coulomb attraction between electron and hole is considembly enhanced as a result of the difference benveen the permittivities of the semiconductor and insulator.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2001
Accession Number
ADP013182

Entities

People

  • A. Syrnicov
  • E. Muljarov
  • E. Zhukov
  • S. Gavrilov
  • V. Dneprovskii

Organizations

  • Moscow State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Argon Lasers
  • Band Gaps
  • Diameters
  • Electron Holes
  • Electrons
  • Energy
  • Energy Bands
  • Excitons
  • Fourier Spectroscopy
  • Luminescence
  • Nanocrystals
  • Optical Properties
  • Physics
  • Quantum Wires
  • Semiconductors
  • Spectra
  • Transitions

Fields of Study

  • Materials science
  • Physics

Readers

  • Materials Science and Engineering.
  • Nanocomposite Materials Science
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics
  • Quantum Computing