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Title: Continuous injection synthesis of indium arsenide quantum dots emissive in the short-wavelength infrared

Abstract

With the emergence of applications based on short-wavelength infrared light, indium arsenide quantum dots are promising candidates to address existing shortcomings of other infrared-emissive nanomaterials. However, III–V quantum dots have historically struggled to match the high-quality optical properties of II–VI quantum dots. Here we present an extensive investigation of the kinetics that govern indium arsenide nanocrystal growth. Based on these insights, we design a synthesis of large indium arsenide quantum dots with narrow emission linewidths. We further synthesize indium arsenide-based core-shell-shell nanocrystals with quantum yields up to 82% and improved photo- and long-term storage stability. We then demonstrate non-invasive through-skull fluorescence imaging of the brain vasculature of murine models, and show that our probes exhibit 2–3 orders of magnitude higher quantum yields than commonly employed infrared emitters across the entire infrared camera sensitivity range. Finally, we anticipate that these probes will not only enable new biomedical imaging applications, but also improved infrared nanocrystal-LEDs and photon-upconversion technology.

Authors:
 [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Chemistry
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1388331
Grant/Contract Number:  
SC0001088
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Related Information: CE partners with Massachusetts Institute of Technology (lead); Brookhaven National Laboratory; Harvard University; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; solar (photovoltaic); solid state lighting; photosynthesis (natural and artificial); charge transport; optics; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)

Citation Formats

Franke, Daniel, Harris, Daniel K., Chen, Ou, Bruns, Oliver T., Carr, Jessica A., Wilson, Mark W. B., and Bawendi, Moungi G. Continuous injection synthesis of indium arsenide quantum dots emissive in the short-wavelength infrared. United States: N. p., 2016. Web. doi:10.1038/ncomms12749.
Franke, Daniel, Harris, Daniel K., Chen, Ou, Bruns, Oliver T., Carr, Jessica A., Wilson, Mark W. B., & Bawendi, Moungi G. Continuous injection synthesis of indium arsenide quantum dots emissive in the short-wavelength infrared. United States. doi:10.1038/ncomms12749.
Franke, Daniel, Harris, Daniel K., Chen, Ou, Bruns, Oliver T., Carr, Jessica A., Wilson, Mark W. B., and Bawendi, Moungi G. Fri . "Continuous injection synthesis of indium arsenide quantum dots emissive in the short-wavelength infrared". United States. doi:10.1038/ncomms12749. https://www.osti.gov/servlets/purl/1388331.
@article{osti_1388331,
title = {Continuous injection synthesis of indium arsenide quantum dots emissive in the short-wavelength infrared},
author = {Franke, Daniel and Harris, Daniel K. and Chen, Ou and Bruns, Oliver T. and Carr, Jessica A. and Wilson, Mark W. B. and Bawendi, Moungi G.},
abstractNote = {With the emergence of applications based on short-wavelength infrared light, indium arsenide quantum dots are promising candidates to address existing shortcomings of other infrared-emissive nanomaterials. However, III–V quantum dots have historically struggled to match the high-quality optical properties of II–VI quantum dots. Here we present an extensive investigation of the kinetics that govern indium arsenide nanocrystal growth. Based on these insights, we design a synthesis of large indium arsenide quantum dots with narrow emission linewidths. We further synthesize indium arsenide-based core-shell-shell nanocrystals with quantum yields up to 82% and improved photo- and long-term storage stability. We then demonstrate non-invasive through-skull fluorescence imaging of the brain vasculature of murine models, and show that our probes exhibit 2–3 orders of magnitude higher quantum yields than commonly employed infrared emitters across the entire infrared camera sensitivity range. Finally, we anticipate that these probes will not only enable new biomedical imaging applications, but also improved infrared nanocrystal-LEDs and photon-upconversion technology.},
doi = {10.1038/ncomms12749},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {11}
}

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Works referenced in this record:

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