SPONTANEOUS AND STIMULATED PHOTOLUMINESCENCE OF CDSE CDS STARK SUPERLATTICES/

Authors
GRUN M LANGBEIN W HETTERICH M KLINGSHIRN C
Citation
M. Grun et al., SPONTANEOUS AND STIMULATED PHOTOLUMINESCENCE OF CDSE CDS STARK SUPERLATTICES/, Superlattices and microstructures, 15(4), 1994, pp. 463-465
Citations number
8
Categorie Soggetti
Physics, Condensed Matter
Journal title
Superlattices and microstructures → ACNP
ISSN journal
07496036
Volume
15
Issue
4
Year of publication
1994
Pages
463 - 465
Database
ISI
SICI code
0749-6036(1994)15:4<463:SASPOC>2.0.ZU;2-6
Abstract
Photoluminescence properties of CdSe/CdS intrinsic Stark superlattices are studied mainly by means of nanosecond optical spectroscopy. The b lue-shift induced by increasing screening of the internal piezoelectri c fields with increasing excitation power reaches nearly 0.4 eV for sa mples with large periods. At excitation levels above 2 to 20 MW/cm(2) stimulated emission is observed depending on temperature. Measurements by the stripe-length method give gain maximum values around 10(3) cm( -1).