Accession Number:

ADP013182

Title:

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

Descriptive Note:

Conference proceedings

Corporate Author:

MOSCOW STATE UNIV (RUSSIA) DEPT OF PHYSICS

Report Date:

2001-06-01

Pagination or Media Count:

4.0

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.

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE