Ozel, T.Nizamoglu, S.Sefunc, M.A.Samarskaya, O.Ozel, I. O.Mutlugun, E.Lesnyak, V.Gaponik N.Eychmuller, A.Gaponenko, S. V.Demir, Hilmi Volkan2015-07-282015-07-282011-01-191936-0851http://hdl.handle.net/11693/13375We propose and demonstrate a nanocomposite localized surface plasmon resonator embedded into an artificial three-dimensional construction. Colloidal semiconductor quantum dots are assembled between layers of metal nanoparticles to create a highly strong plasmon-exciton interaction in the plasmonic cavity. In such a multilayered plasmonic resonator architecture of isotropic CdTe quantum dots, we observed polarized light emission of 80% in the vertical polarization with an enhancement factor of 4.4, resulting in a steady-state anisotropy value of 0.26 and reaching the highest quantum efficiency level of 30% ever reported for such CdTe quantum dot solids. Our electromagnetic simulation results are in good agreement with the experimental characterization data showing a significant emission enhancement in the vertical polarization, for which their fluorescence decay lifetimes are substantially shortened by consecutive replication of our unit cell architecture design. Such strongly plasmon-exciton coupling nanocomposites hold great promise for future exploitation and development of quantum dot plasmonic biophotonics and quantum dot plasmonic optoelectronics.EnglishLocalized surface plasmonsExcitonsFluorescence anisotropyResonatorsSemiconductor quantum dotsLayer-by-layer assemblyNanocompositesArticle10.1021/nn1030324