Transient spectral dependence of photoinduced magneto-optical Faraday effect in CdTe quantum dots
The time-resolved photo-induced magneto-optical response of water soluble cadmium telluride (CdTe) colloidal quantum dots (QDs) is studied in the spectral range across the first exciton (1S3/21Se) transition at room temperature without external magnetic field. Spectral dependence of the Faraday elli...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2012-03-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.3679403 |
| Summary: | The time-resolved photo-induced magneto-optical response of water soluble cadmium telluride (CdTe) colloidal quantum dots (QDs) is studied in the spectral range across the first exciton (1S3/21Se) transition at room temperature without external magnetic field. Spectral dependence of the Faraday ellipticity reaches an extremum near the first exciton transition energy, while the Faraday rotation shows a sign reversal, which indicates that the spectral dependence of photo-induced Faraday effect evolves from a diamagnetic to a paramagnetic behavior during the exciton spin relaxation process in CdTe QDs. |
|---|---|
| ISSN: | 2158-3226 |