NEW OPTICAL-PROPERTIES OF GE SELF-ORGANIZED QUANTUM DOTS

Authors
PENG CS HUANG Q ZHANG YH CHENG WQ SHENG TT TUNG CH ZHOU JM
Citation
Cs. Peng et al., NEW OPTICAL-PROPERTIES OF GE SELF-ORGANIZED QUANTUM DOTS, Thin solid films, 323(1-2), 1998, pp. 174-177
Citations number
13
Categorie Soggetti
Physics, Applied","Material Science","Physics, Condensed Matter
Journal title
Thin solid films → ACNP
ISSN journal
00406090
Volume
323
Issue
1-2
Year of publication
1998
Pages
174 - 177
Database
ISI
SICI code
0040-6090(1998)323:1-2<174:NOOGSQ>2.0.ZU;2-F
Abstract
Small size, high density, dislocation-free and vertical ordering Ge se lf-organized quantum dots are observed. The quantum dots size dependen ce of exciton energy and exciton binding energy agree well with the th eoretical calculation, which suggest the indirect-to-direct conversion . The characteristic of absorption indicates directly direct optical t ransition. The tunnelling of carriers between these quantum dots is al so observed. (C) 1998 Elsevier Science S.A. All rights reserved.