Temperature dependence of the photoluminescence of InGaAs/GaAs quantum dot structures without wetting layer

S Sanguinetti, T Mano, M Oshima, T Tateno… - Applied physics …, 2002 - pubs.aip.org
We analyze the photoluminescence temperature behavior of InGaAs/GaAs quantum dots
grown by heterogeneous droplet epitaxy. Morphologically, these dots are nanocrystal …

Development of continuum states in photoluminescence of self-assembled InGaAs∕ GaAs quantum dots

YI Mazur, BL Liang, ZM Wang, GG Tarasov… - Journal of applied …, 2007 - pubs.aip.org
Crossed transitions between the wetting layer valence band and the quantum dot (QD)
electron states are revealed in the photoluminescence from self-assembled In 0.4 Ga 0.6 …

Structural study of InGaAs/GaAs quantum dots grown by metalorganic chemical vapor deposition for optoelectronic applications at 1.3 μm

A Passaseo, R Rinaldi, M Longo, S Antonaci… - Journal of Applied …, 2001 - pubs.aip.org
The application of quantum dots QDs as active material in optical devices has attracted
much attention, due to the potential advantages offered by the three-dimensionally confined …

Influence of In/Ga intermixing on the optical properties of InGaAs/GaAs quantum dots

F Heinrichsdorff, M Grundmann, O Stier, A Krost… - Journal of crystal …, 1998 - Elsevier
We report on the impact of thermal annealing of buried InGaAs quantum dots (QDs) on the
eigenstate energies and their inhomogeneous broadening due to size fluctuations …

Wetting layer states of InAs∕ GaAs self-assembled quantum dot structures: Effect of intermixing and capping layer

G Sęk, K Ryczko, M Motyka, J Andrzejewski… - Journal of applied …, 2007 - pubs.aip.org
The authors present a modulated reflectivity study of the wetting layer (WL) states in
molecular beam epitaxy grown In As∕ Ga As quantum dot (QD) structures designed to emit …

Scanning photoluminescence spectroscopy in InAs∕ InGaAs quantum-dot structures

M Dybiec, S Ostapenko, TV Torchynska… - Applied physics …, 2004 - pubs.aip.org
Spatially-resolved photoluminescence (PL) spectroscopy was performed at different
temperatures on self-assembled InAs quantum dots embedded into MBE-grown In 0.15 Ga …

Cross-sectional scanning tunneling microscopy study of InGaAs quantum dots on GaAs (001) grown by heterogeneous droplet epitaxy

N Liu, HK Lyeo, CK Shih, M Oshima, T Mano… - Applied physics …, 2002 - pubs.aip.org
We present a cross-sectional scanning tunneling microscopy STM study of heterogeneous-
droplet-epitaxy HDE-grown InGaAs quantum dots QDs. We found that the structural …

Structural and optical properties of self‐assembled InGaAs quantum dots

D Leonard, S Fafard, K Pond, YH Zhang… - Journal of Vacuum …, 1994 - pubs.aip.org
A one step method for the production of quantum dots is presented. The method exploits the
mismatch strain of molecular beam epitaxy (MBE) deposited InGaAs on GaAs to induce a …

1.3 µm luminescence and gain from defect-free InGaAs-GaAs quantum dots grown by metal-organic chemical vapour deposition

NN Ledentsov, MV Maximov, D Bimberg… - Semiconductor …, 2000 - iopscience.iop.org
Annealing of InGaAs quantum dots (QDs) fabricated by metal-organic chemical vapour
deposition and covered with a very thin GaAs cap layer completely eliminates large …

InGaAs/GaAs quantum dots on (111) B GaAs substrates

FY Tsai, CP Lee - Journal of applied physics, 1998 - pubs.aip.org
InGaAs/GaAs quantum dots have been grown directly on (111) B GaAs substrates using
molecular beam epitaxy. The island growth mode, which causes quantum dot formation, is …