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
Personal Author(s):
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.
Descriptors:
Subject Categories:
- Electrooptical and Optoelectronic Devices
- Solid State Physics