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

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

^*Corresponding author for this work

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

5 Citations (Scopus)

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.

Original language	English
Article number	153108
Journal	Applied Physics Letters
Volume	93
Issue number	15
DOIs	https://doi.org/10.1063/1.2998693
Publication status	Published - 13 Oct 2008
Externally published	Yes

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title = "Geometrical correlations of quantum dots in InAs/GaAs superlattice structure from electron tomography",

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. ",

author = "Wu, {Y. H.} and L. Chang and Chen, {L. C.} and Chen, {H. S.} and Chen, {F. R.}",

year = "2008",

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T1 - Geometrical correlations of quantum dots in InAs/GaAs superlattice structure from electron tomography

AU - Wu, Y. H.

AU - Chang, L.

AU - Chen, L. C.

AU - Chen, H. S.

AU - Chen, F. R.

PY - 2008/10/13

Y1 - 2008/10/13

N2 - 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.

AB - 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.

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U2 - 10.1063/1.2998693

DO - 10.1063/1.2998693

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 93

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 15

M1 - 153108

ER -

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

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