Surface plasmon-quantum dot coupling from arrays of nanoholes

The Journal of Physical Chemistry. B
Alexandre G BroloKaren L Kavanagh

Abstract

The coupling of semiconductor quantum dots (QDs) to the surface plasmon (SP) modes of nanohole arrays in a metal film was demonstrated for the first time, showing enhancement in the spontaneous emission by 2 orders of magnitude. The SP-enhanced transmission resonances of the nanohole arrays were tuned around the photoluminescence (PL) peak of polystyrene-b-poly(acrylic acid) (PS-b-PAA)-stabilized cadmium sulfide (CdS) quantum dots (QDs) in contact with the arrays. As a result the overall PL from the SP-QD system was enhanced by 2 orders of magnitude, even after excluding the enhanced transmission of the nanohole array without the QDs. The maximum enhancement occurred when the resonance from the nanohole array matched the QD PL spectrum. Time-resolved PL measurements were used to estimate the relative contribution of different physical mechanisms to the enhanced spontaneous emission. The increased spontaneous emission in the SP-QD system is promising for prospective plasmonic light-emitting devices incorporating QDs.

References

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Oct 20, 2005·Journal of the American Chemical Society·Alexandre G BroloKaren L Kavanagh
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Citations

Jul 26, 2008·Nature Nanotechnology·P P PompaR Rinaldi
Jul 5, 2013·The Journal of Chemical Physics·Bintoro S NugrohoJasper Knoester
Jun 3, 2015·Physical Chemistry Chemical Physics : PCCP·PengHui WangAlexandre G Brolo
Feb 12, 2015·The Analyst·H-P Poirier-RichardJ-F Masson
Jul 14, 2012·Reports on Progress in Physics·Nathan C LindquistSang-Hyun Oh
Apr 11, 2008·Analytical Chemistry·Bipin K Singh, Andrew C Hillier
Jul 9, 2008·Accounts of Chemical Research·Reuven GordonAlexandre G Brolo
Apr 24, 2007·Analytical Chemistry·Angela De LeebeeckAlexandre G Brolo
Oct 17, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Si Hoon LeeChristy L Haynes
Feb 22, 2008·Analytical Chemistry·John C SharpeRichard J Blaikie
Jan 31, 2008·Chemical Reviews·Matthew E StewartRalph G Nuzzo

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