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Issue 33, 2015
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Emission enhancement and polarization of semiconductor quantum dots with nanoimprinted plasmonic cavities: towards scalable fabrication of plasmon-exciton displays

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Abstract

Here we present an application of a high throughput nanofabrication technique to the creation of a plasmonic metasurface and demonstrate its application to the enhancement and control of radiation by quantum dots (QDs). The metasurface consists of an array of cold-forged rectangular nanocavities in a thin silver film. High quantum efficiency graded alloy CdSe/CdS/ZnS quantum dots were spread over the metasurface and the effects of the plasmon–exciton interactions characterised. We found a four-fold increase in the QDs radiative decay rate and emission brightness, compared to QDs on glass, along with a degree of linear polarisation of 0.73 in the emitted field. Such a surface could be easily integrated with current QD display or organic solar cell designs.

Graphical abstract: Emission enhancement and polarization of semiconductor quantum dots with nanoimprinted plasmonic cavities: towards scalable fabrication of plasmon-exciton displays

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Supplementary files

Article information


Submitted
18 Jun 2015
Accepted
16 Jul 2015
First published
22 Jul 2015

Nanoscale, 2015,7, 13816-13821
Article type
Communication
Author version available

Emission enhancement and polarization of semiconductor quantum dots with nanoimprinted plasmonic cavities: towards scalable fabrication of plasmon-exciton displays

J. J. Cadusch, E. Panchenko, N. Kirkwood, T. D. James, B. C. Gibson, K. J. Webb, P. Mulvaney and A. Roberts, Nanoscale, 2015, 7, 13816
DOI: 10.1039/C5NR04042F

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