Geometrical correlations of quantum dots in InAs/GaAs superlattice structure from electron tomography

Y. H. Wu; L. Chang; L. C. Chen; H. S. Chen; F. R. Chen

doi:10.1063/1.2998693

Author(s)

Y. H. Wu
L. Chang
L. C. Chen
H. S. Chen
F. R. Chen

Detail(s)

Original language	English
Article number	153108
Journal / Publication	Applied Physics Letters
Volume	93
Issue number	15
Publication status	Published - 13 Oct 2008
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1063/1.2998693 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-54149111792&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(cde14503-4099-46fc-a933-1d6a7ba3b1df).html

Abstract

In this study, the three-dimensional (3D) information about the structural properties of quantum dots (QDs) in InAs/GaAs superlattice structure has been illustrated using electron tomography in the mode of high-angle angular dark-field scanning transmission electron microscopy. Comparison of this 3D reconstruction with the two-dimensional projection at the same positions is made. The structural properties of embedded quantum dots have been evaluated from electron tomography. The correlation relationship of QDs in superlattice structure has been understood by accurate measurements of 3D geometric positions, which can be free of the overlapping effect from 2D cross section along different crystallographic orientations.

Citation Format(s)

[ RIS ] [ BibTeX ]

Geometrical correlations of quantum dots in InAs/GaAs superlattice structure from electron tomography. / Wu, Y. H.; Chang, L.; Chen, L. C. et al.
In: Applied Physics Letters, Vol. 93, No. 15, 153108, 13.10.2008.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Wu, YH, Chang, L, Chen, LC, Chen, HS & Chen, FR 2008, 'Geometrical correlations of quantum dots in InAs/GaAs superlattice structure from electron tomography', Applied Physics Letters, vol. 93, no. 15, 153108. https://doi.org/10.1063/1.2998693

Wu, Y. H., Chang, L., Chen, L. C., Chen, H. S., & Chen, F. R. (2008). Geometrical correlations of quantum dots in InAs/GaAs superlattice structure from electron tomography. Applied Physics Letters, 93(15), Article 153108. https://doi.org/10.1063/1.2998693

Wu YH, Chang L, Chen LC, Chen HS, Chen FR. Geometrical correlations of quantum dots in InAs/GaAs superlattice structure from electron tomography. Applied Physics Letters. 2008 Oct 13;93(15):153108. doi: 10.1063/1.2998693

Wu, Y. H. ; Chang, L. ; Chen, L. C. et al. / Geometrical correlations of quantum dots in InAs/GaAs superlattice structure from electron tomography. In: Applied Physics Letters. 2008 ; Vol. 93, No. 15.