title: Evidence for 2D precursors and interdiffusion in the evolution of self-assembled CdSe quantum dots on ZnSe
abstract: The evolution of self-assembled CdSe quantum dots deposited on (and subsequently capped by) ZnSe was investigated on a series of samples grown by molecular beam epitaxy, with CdSe coverages from 0.5 to 2.6 monolayers. The samples were investigated by cross-sectional scanning transmission electron microscopy, as well as macro- and microphotoluminescence. The results clearly indicated a coexistence of 2D ZnCdSe platelets and 3D islands, showing clearly that the platelets act as precursors for the formation of the 3D islands.
authors.affiliation: Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA.
authors.initials: CS
authors.lastname: Kim
authors.initials: M
authors.lastname: Kim
authors.initials: JK
authors.lastname: Furdyna
authors.initials: M
authors.lastname: Dobrowolska
authors.initials: S
authors.lastname: Lee
authors.initials: H
authors.lastname: Rho
authors.initials: LM
authors.lastname: Smith
authors.initials: HE
authors.lastname: Jackson
authors.initials: EM
authors.lastname: James
authors.initials: Y
authors.lastname: Xin
authors.initials: ND
authors.lastname: Browning