When do excitons really exist?

Authors
Hagele, D Hubner, J Ruhle, WW Oestreich, M
Citation
D. Hagele et al., When do excitons really exist?, PHYSICA B, 272(1-4), 1999, pp. 328-330
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
272
Issue
1-4
Year of publication
1999
Pages
328 - 330
Database
ISI
SICI code
0921-4526(199912)272:1-4<328:WDERE>2.0.ZU;2-9
Abstract
We demonstrate a new concept to identify the population of 1s excitons in s emiconductors in the time between optical excitation and recombination. The experiment determines the overlap of electrons and holes by tracing the el ectron-hole exchange energy. A dominant population of excitons is only pres ent under stringent experimental conditions. (C) 1999 Elsevier Science B.V. All rights reserved.