Details
| Original language | English |
|---|---|
| Pages (from-to) | 117-119 |
| Number of pages | 3 |
| Journal | Physica E: Low-Dimensional Systems and Nanostructures |
| Volume | 17 |
| Issue number | 1-4 |
| Publication status | Published - 25 Feb 2003 |
| Event | International Conference on Superlattices - ICSNN 2002 - Touluse, France Duration: 22 Jul 2002 → 26 Jul 2002 |
Abstract
We report photoluminescence data from three InAs/AlAs quantum dot samples with different densities and separations, respectively. For medium density the quantum dot related emission peak shows a blueshift with increasing excitation power whereas for very high dot density a redshift is observed. These opposite peak shifts are explained by different carrier transfer processes amongst lateral coupled QDs.
Keywords
- InAs/AlAs, Photoluminescence, Quantum dots, Self-assembled quantum dots
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 17, No. 1-4, 25.02.2003, p. 117-119.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Photoluminescence of self-assembled InAs/AlAs quantum dots as a function of density
AU - Ma, Z.
AU - Pierz, K.
AU - Keyser, U. F.
AU - Haug, R. J.
N1 - Funding information: This work was supported by the Deutsche Forschungsgemeinschaft (DFG), Grant Nos. Pi385/1-2 and Ha1826/5-2.
PY - 2003/2/25
Y1 - 2003/2/25
N2 - We report photoluminescence data from three InAs/AlAs quantum dot samples with different densities and separations, respectively. For medium density the quantum dot related emission peak shows a blueshift with increasing excitation power whereas for very high dot density a redshift is observed. These opposite peak shifts are explained by different carrier transfer processes amongst lateral coupled QDs.
AB - We report photoluminescence data from three InAs/AlAs quantum dot samples with different densities and separations, respectively. For medium density the quantum dot related emission peak shows a blueshift with increasing excitation power whereas for very high dot density a redshift is observed. These opposite peak shifts are explained by different carrier transfer processes amongst lateral coupled QDs.
KW - InAs/AlAs
KW - Photoluminescence
KW - Quantum dots
KW - Self-assembled quantum dots
UR - http://www.scopus.com/inward/record.url?scp=0037391580&partnerID=8YFLogxK
U2 - 10.1016/S1386-9477(02)00737-3
DO - 10.1016/S1386-9477(02)00737-3
M3 - Conference article
AN - SCOPUS:0037391580
VL - 17
SP - 117
EP - 119
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 1-4
T2 - International Conference on Superlattices - ICSNN 2002
Y2 - 22 July 2002 through 26 July 2002
ER -