Spectral selection of excitonic transitions in a dense array of CdSe/ZnSe quantum dots. Issue 8 (16th March 2016)

• Record Type: Journal Article
• Authors: Shubina, T. V.; Rodina, A. V.; Semina, M. A.; Golovatenko, A. A.; Toropov, A. A.; Rakhlin, M. V.; Sedova, I. V.; Sorokin, S. V.; Gronin, S. V.; Sitnikova, A. A.; Kuritsyn, D. I.; Sergeev, S. M.; Krasil'nik, Z. F.; Ivanov, S. V.
• Is Part Of: Physica status solidi. Volume 253:Issue 8(2016)
• Page Start: 1485
• Page End: 1489
• Publication Date: 2016-03-16
• Subjects: II–VI semiconductors -- Förster energy transfer -- Molecular beam epitaxy -- quantum dots -- CdSe -- ZnSe; Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.201600095
• Languages: English
• ISSNs: 0370-1972

Abstract

Abstract: Abstractauthoren We demonstrate that the selection of a limited number of single excitonic lines from a dense array of epitaxial quantum dots (QDs) can be realized spectrally via resonant energy transfer from a huge number of small QDs toward a limited set of large nano‐islands through their excited levels. Optical and transmission electron microscopy studies support this mechanism. Theoretical modeling describes the architecture of quantum levels in the array of CdSe/ZnSe QDs, which enables such a spectral selection. Schematic of resonant energy transfer between QDs shown together with a plan‐view TEM image of a QD array.