We report an experimental investigation of the dependence of the lowest exciton energy of CdS 0 clusters (quantum dots) on the cluster size. The cluster diameter is varied from 60 to 10 A. X-ray diffraction provides definitive identification of the cluster phase and permits a determination of the av
Quantum size effects on the exciton energy of CdS clusters
β Scribed by Wang, Ying; Herron, Norman
- Book ID
- 115464690
- Publisher
- The American Physical Society
- Year
- 1990
- Tongue
- English
- Weight
- 165 KB
- Volume
- 42
- Category
- Article
- ISSN
- 1098-0121
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
For the exciton (e-, h'J confined to a sphere (a simple model for the light absorption of a small semiconductor particle) we calculate some of the electronic states. We use procedures similar to those for the two-electron atom. For radii R smaller than the 'exciton radius" simple oneconfiguration wa
Carrier density e ects on the dynamics of an electrically pumped exciton, created by hole-assisted, electron resonant tunneling in an asymmetric coupled quantum well system, has been studied self-consistently. Calculations show that, ΓΏrst, the binding energy and the oscillation period decrease with