Abstract
The dynamics of carrier‐induced absorption changes in CdSe nanocrystals excited by 2 and 4 eV photons are investigated with femtosecond pump and probe spectroscopy. After excitation with 4 eV photons a transient red shift of the lowest optical transition is observed in the initial phase of carrier relaxation. This shift is attributed to the Coulomb two‐electron‐hole‐pair interaction (a biexciton effect).
Original language | English |
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Pages (from-to) | 259-267 |
Number of pages | 9 |
Journal | Physica Status Solidi (B): Basic Research |
Volume | 188 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1995 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics