Strong plasmonic enhancement of biexciton emission: Controlled coupling of a single quantum dot to a gold nanocone antenna

Journal article
(Original article)


Publication Details

Author(s): Matsuzaki K, Vassant S, Liu HW, Dutschke A, Hoffmann B, Chen X, Christiansen S, Buck MR, Hollingsworth JA, Götzinger S, Sandoghdar V
Journal: Scientific Reports
Publisher: Nature Publishing Group
Publication year: 2017
Volume: 7
ISSN: 2045-2322


Abstract


Multiexcitonic transitions and emission of several photons per excitation comprise a very attractive feature of semiconductor quantum dots for optoelectronics applications. However, these higher-order radiative processes are usually quenched in colloidal quantum dots by Auger and other nonradiative decay channels. To increase the multiexcitonic quantum efficiency, several groups have explored plasmonic enhancement, so far with moderate results. By controlled positioning of individual quantum dots in the near field of gold nanocone antennas, we enhance the radiative decay rates of monoexcitons and biexcitons by 109 and 100 folds at quantum efficiencies of 60 and 70%, respectively, in very good agreement with the outcome of numerical calculations. We discuss the implications of our work for future fundamental and applied research in nano-optics.



FAU Authors / FAU Editors

Götzinger, Stephan Prof. Dr.
Department Physik
Liu, Hsuan-Wei
Lehrstuhl für Experimentalphysik (Alexander-von-Humboldt-Professur)
Sandoghdar, Vahid Prof. Dr.
Lehrstuhl für Experimentalphysik (Alexander-von-Humboldt-Professur)


Additional Organisation
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


External institutions
Los Alamos National Laboratory
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light


How to cite

APA:
Matsuzaki, K., Vassant, S., Liu, H.-W., Dutschke, A., Hoffmann, B., Chen, X.,... Sandoghdar, V. (2017). Strong plasmonic enhancement of biexciton emission: Controlled coupling of a single quantum dot to a gold nanocone antenna. Scientific Reports, 7. https://dx.doi.org/10.1038/srep42307

MLA:
Matsuzaki, Korenobu, et al. "Strong plasmonic enhancement of biexciton emission: Controlled coupling of a single quantum dot to a gold nanocone antenna." Scientific Reports 7 (2017).

BibTeX: 

Last updated on 2019-03-06 at 16:05