Issue 33, 2015
From the journal:

Nanoscale

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

Jasper J. Cadusch,*a   Evgeniy Panchenko,a   Nicholas Kirkwood,b   Timothy D. James,ac   Brant C. Gibson,d   Kevin J. Webb,e   Paul Mulvaneyb  and  Ann Robertsa  

* Corresponding authors

a School of Physics, The University of Melbourne, Parkville, VIC 3010, Australia
E-mail: jcadusch@student.unimelb.edu.au

b School of Chemistry and Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia

c Melbourne Centre for Nanofabrication (MCN), Australian National Fabrication Facility, Clayton, VIC, Australia

d College of Science, Engineering and Health, RMIT University, Melbourne, VIC, Australia

e School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA

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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Article information

DOI
https://doi.org/10.1039/C5NR04042F
Article type
Communication
Submitted
18 Jun 2015
Accepted
16 Jul 2015
First published
22 Jul 2015

Nanoscale, 2015,7, 13816-13821

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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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