Emission enhancement and polarization of semiconductor quantum dots with nanoimprinted plasmonic cavities: towards scalable fabrication of plasmon-exciton displays
Jasper J Cadusch, Evgeniy Panchenko, Nicholas Kirkwood, Timothy D James, Brant C Gibson, Kevin J Webb, Paul Mulvaney, Ann Roberts
NANOSCALE | ROYAL SOC CHEMISTRY | Published : 2015
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 ..View full abstract
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Awarded by Australian Research Council's Discovery Projects funding scheme
This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). This research was supported under the Australian Research Council's Discovery Projects funding scheme (project number DP110100221) and a Melbourne Centre for Nanofabrication Technical Fellowship.