Quantum dots (QDs), which capture and emit carriers like a giant trap, are studied using deep level transient spectroscopy (DLTS). The electrons and holes in the QDs are emitted from the relevant energy levels to the conduction and valence bands, respectively, of the barrier layers with increasing t
Spectroscopic studies of self-assembled InAs and In0.5Ga0.5As quantum dots
β Scribed by S.T. Stoddart; A. Polimeni; M. Henini; L. Eaves; P.C. Main; R.K. Hayden; K. Uchida; N. Miura
- Book ID
- 108418575
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 302 KB
- Volume
- 123-124
- Category
- Article
- ISSN
- 0169-4332
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We use time-resolved photoluminescence spectroscopy to probe the relaxation of excited states in In 0.5 Al 0.04 Ga 0.46 As/Al 0.08 Ga 0.92 As self-assembled quantum dots. The relaxation rate of excitons confined to the quantum dots increases by nearly an order of magnitude as the energy of the state
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