Abstract
Monolayer fluctuations in ultrathin, coherently strained CdS/ZnS quantum structures result in a very strong localization of excitons. The deepest localized excitons can be considered as individual, decoupled and three-dimensionally confined. Consequently, fingerprints of zero-dimensionality are found in the optical spectra like single, ultranarrow luminescence lines in micro-photoluminescence and spectrally broad optical gain in the deep blue spectral range. The exchange splitting is proven and a strong enhancement over the bulk value is observed.
| Original language | English |
|---|---|
| Journal | IPPS physica status solidi (b) |
| Volume | 206 |
| Issue number | 1 |
| Pages (from-to) | 501-506 |
| ISSN | 0370-1972 |
| DOIs | |
| Publication status | Published - 1998 |
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