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Recombination dynamics in arrays of II-VI epitaxial quantum dots with Forster resonance energy transfer
Ioffe Institute, Russia.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-9840-7364
Ioffe Institute, Russia.
2017 (English)In: Physica status solidi. B, Basic research, ISSN 0370-1972, E-ISSN 1521-3951, Vol. 254, no 4, UNSP 1600414Article in journal (Refereed) Published
Abstract [en]

We report on time-resolved photoluminescence (TR PL) studies of Forster resonance energy transfer (FRET) between epitaxial CdSe/ZnSe quantum dots (QDs). To prove the existence of FRET, we use two sheets of QD arrays, formed from CdSe insertions of different nominal thicknesses, which are separated by a ZnSe barrier of a variable width. The FRET mechanism manifests itself as acceleration of the PL decay of the energy-donating QD sheet when the barrier width is decreased. The Forster radius of about 10.5nm is determined by fitting TR PL data. Besides, our findings exhibit the inhomogeneous distribution of QD sizes within the QD arrays and the influence of FRET efficiency on recombination dynamics of forbidden exciton states. TR PL images showing the acceleration of PL decay of the energy-donating QD array with decreasing the barrier width.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2017. Vol. 254, no 4, UNSP 1600414
Keyword [en]
CdSe; ZnSe; dense arrays; energy transfer; Forster mechanism; quantum dots; time-resolved photoluminescence
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:liu:diva-137096DOI: 10.1002/pssb.201600414ISI: 000398824000013OAI: oai:DiVA.org:liu-137096DiVA: diva2:1093243
Conference
International Conference on Terahertz Emission, Metamaterials and Nanophotonics (TERAMETANANO)
Note

Funding Agencies|Russian Science Foundation [14-22-00107]

Available from: 2017-05-05 Created: 2017-05-05 Last updated: 2017-05-05

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf