K. Scheerschmidt et al., Electron microscope characterization of CdSe/ZnSe quantum dots based on molecular dynamics structure relaxations, ULTRAMICROS, 81(3-4), 2000, pp. 289-300
Molecular dynamics simulations using empirical potentials are applied to ch
aracterize the structure, the energy relaxation and the stability of pyrami
dal-shaped quantum dots in the CdSe/ZnSe system. The relaxed structure mode
ls are used for a reliable interpretation of electron microscope investigat
ions to analyze the size, the shape and the strain fields of the quantum do
ts. Though the elastic strains modify the electron microsope image contrast
by creating virtual truncations of the pyramids or additional black-white
lobes, optimum imaging conditions chosen will reveal the shape and the size
of the dots. (C) 2000 Elsevier Science B.V. All rights reserved.