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  • 3C-SiC/AlN Distributed Bragg Reflector for GaN-based LEDs grown on large diameter silicon wafers

    Author(s)
    Massoubre, David
    Wang, Li
    Chu, R
    Guo, J. D.
    Chai, Jessica
    Walker, Glenn Michael
    Hold, Leonie Katharina
    Guo, A.
    Iacopi, Alan Victor
    Griffith University Author(s)
    Walker, Glenn M.
    Iacopi, Alan V.
    Wang, Li
    Hold, Leonie K.
    Massoubre, David
    Chai, Jessica
    Year published
    2013
    Metadata
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    Abstract
    The cost of Light Emitting Diodes (LEDs) is still impairing their sale for general lighting. In order to reduce the LED’s fabrication cost, the growth of efficient Gallium-Nitride (GaN)- based LEDs on large silicon (Si) wafers has consequently become an important research focus for the solid-state lighting industry. We are proposing here the use of thin-layers of silicon carbide (3C-SiC) with the aim not only to improve the nitride growth but also to enhance the light output from GaN-LEDs on Si. SiC has a lower lattice mismatch to GaN (3%) than Si (17%) which makes it more suitable for the integration of GaN-LEDs on Si ...
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    The cost of Light Emitting Diodes (LEDs) is still impairing their sale for general lighting. In order to reduce the LED’s fabrication cost, the growth of efficient Gallium-Nitride (GaN)- based LEDs on large silicon (Si) wafers has consequently become an important research focus for the solid-state lighting industry. We are proposing here the use of thin-layers of silicon carbide (3C-SiC) with the aim not only to improve the nitride growth but also to enhance the light output from GaN-LEDs on Si. SiC has a lower lattice mismatch to GaN (3%) than Si (17%) which makes it more suitable for the integration of GaN-LEDs on Si wafers1. Furthermore, its large refractive index and low residual absorption make it an ideal material to develop photonic structures with the goal of reducing parasitic light absorption from the Si substrate.
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    Conference Title
    ANFF Research Showcase 2013
    Publisher URI
    http://www.anff.org.au/2013-annual-research-showcase.html
    Subject
    Photonics, Optoelectronics and Optical Communications
    Publication URI
    http://hdl.handle.net/10072/59315
    Collection
    • Conference outputs

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