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Efficient Nanosecond Photoluminescence from Infrared PbS Quantum Dots Coupled to Plasmonic Nanoantennas

Publication ,  Journal Article
Akselrod, GM; Weidman, MC; Li, Y; Argyropoulos, C; Tisdale, WA; Mikkelsen, MH
Published in: ACS Photonics
October 19, 2016

Infrared (IR) light sources with high modulation rates are critical components for on-chip optical communications. Lead-based colloidal quantum dots are promising nonepitaxial materials for use in IR light-emitting diodes, but their slow photoluminescence lifetime is a serious limitation. Here we demonstrate coupling of PbS quantum dots to colloidal plasmonic nanoantennas based on film-coupled metal nanocubes, resulting in a dramatic 1300-fold reduction in the emission lifetime from the microsecond to the nanosecond regime. This lifetime reduction is primarily due to a 1100-fold increase in the radiative decay rate owing to the high quantum yield (65%) of the antenna. The short emission lifetime is accompanied by high antenna quantum efficiency and directionality. This nonepitaxial platform points toward GHz frequency, electrically modulated, telecommunication wavelength light-emitting diodes and single-photon sources.

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Published In

ACS Photonics

DOI

EISSN

2330-4022

Publication Date

October 19, 2016

Volume

3

Issue

10

Start / End Page

1741 / 1746

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 0906 Electrical and Electronic Engineering
  • 0206 Quantum Physics
  • 0205 Optical Physics
 

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Akselrod, G. M., Weidman, M. C., Li, Y., Argyropoulos, C., Tisdale, W. A., & Mikkelsen, M. H. (2016). Efficient Nanosecond Photoluminescence from Infrared PbS Quantum Dots Coupled to Plasmonic Nanoantennas. ACS Photonics, 3(10), 1741–1746. https://doi.org/10.1021/acsphotonics.6b00357
Akselrod, G. M., M. C. Weidman, Y. Li, C. Argyropoulos, W. A. Tisdale, and M. H. Mikkelsen. “Efficient Nanosecond Photoluminescence from Infrared PbS Quantum Dots Coupled to Plasmonic Nanoantennas.” ACS Photonics 3, no. 10 (October 19, 2016): 1741–46. https://doi.org/10.1021/acsphotonics.6b00357.
Akselrod GM, Weidman MC, Li Y, Argyropoulos C, Tisdale WA, Mikkelsen MH. Efficient Nanosecond Photoluminescence from Infrared PbS Quantum Dots Coupled to Plasmonic Nanoantennas. ACS Photonics. 2016 Oct 19;3(10):1741–6.
Akselrod, G. M., et al. “Efficient Nanosecond Photoluminescence from Infrared PbS Quantum Dots Coupled to Plasmonic Nanoantennas.” ACS Photonics, vol. 3, no. 10, Oct. 2016, pp. 1741–46. Scopus, doi:10.1021/acsphotonics.6b00357.
Akselrod GM, Weidman MC, Li Y, Argyropoulos C, Tisdale WA, Mikkelsen MH. Efficient Nanosecond Photoluminescence from Infrared PbS Quantum Dots Coupled to Plasmonic Nanoantennas. ACS Photonics. 2016 Oct 19;3(10):1741–1746.
Journal cover image

Published In

ACS Photonics

DOI

EISSN

2330-4022

Publication Date

October 19, 2016

Volume

3

Issue

10

Start / End Page

1741 / 1746

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 0906 Electrical and Electronic Engineering
  • 0206 Quantum Physics
  • 0205 Optical Physics