OPTICAL-PROPERTIES OF ZNSE-ZNTE TYPE-II SUPERLATTICES

Citation
T. Cloitre et al., OPTICAL-PROPERTIES OF ZNSE-ZNTE TYPE-II SUPERLATTICES, Journal de physique. IV, 3(C5), 1993, pp. 421-424
Citations number
9
Categorie Soggetti
Physics
Journal title
ISSN journal
11554339
Volume
3
Issue
C5
Year of publication
1993
Pages
421 - 424
Database
ISI
SICI code
1155-4339(1993)3:C5<421:OOZTS>2.0.ZU;2-0
Abstract
In this communication we show that the cancelation of excitonic effect s by photo-injected carriers can be easily produced in ZnSe-ZnTe super lattices. This combination is interesting: it has a type 11 band align ment in real space. Strong confinements of electrons and holes by larg e bands offsets lead to important values of Rydberg energies, thus, im portant energy-shifts of some 20 meV are measured when exciton screeni ng is produced in such superlattices.