Organic Light-Emitting Diodes: Silicon Nanocrystal OLEDs: Effect of Organic Capping Group on Performance (Small 23/2012)

Authors

  • Melanie L. Mastronardi,

    1. Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
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  • Eric J. Henderson,

    1. Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
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  • Daniel P. Puzzo,

    1. Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
    2. Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
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  • Yilu Chang,

    1. Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
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  • Zhi Bin Wang,

    1. Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
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  • Michael G. Helander,

    1. Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
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  • Junho Jeong,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Nazir P. Kherani,

    1. Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
    2. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Zhenghong Lu,

    1. Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
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  • Geoffrey A. Ozin

    Corresponding author
    1. Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
    • Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
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Abstract

original image

Pictured is an abstract graphic of a light emitting diode (LED) in which the electroluminescent layer comprises allylbenzene-capped silicon nanocrystals. The use of short aromatic ligands and size-selective precipitation purification methods by G. A. Ozin and co-workers on page 3647 result in superior packing density, enhanced charge transport, and an improved photoluminescence absolute quantum yield of the silicon nanocrystals in the active layer of the LED—a step towards ‘greener’ quantum dot devices.

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