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Advanced Materials

Fabrication and Characterization of Beaded SiC Quantum Rings with Anomalous Red Spectral Shift

Authors

  • Shikuan Yang,

    1. Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
    2. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802-6812, USA
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  • Brian Kiraly,

    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802-6812, USA
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  • William Yi Wang,

    1. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA
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  • Shunli Shang,

    1. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA
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  • Bingqiang Cao,

    1. School of Materials Science and Engineering, University of Jinan, Jinan, 250022, P. R. China
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  • Haibo Zeng,

    1. Department of Material Science, Nanjing University of Aeronautics and Astronoutics (NUAA), Nanjing 210016, P. R. China
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  • Yanhui Zhao,

    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802-6812, USA
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  • Weizhou Li,

    1. School of Materials Science and Engineering, Guangxi University, Nanning, 530004, P. R. China
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  • Zi-Kui Liu,

    1. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA
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  • Weiping Cai,

    Corresponding author
    1. Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
    • Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
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  • Tony Jun Huang

    Corresponding author
    1. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802-6812, USA
    • Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802-6812, USA.
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Abstract

Beaded SiC quantum rings can be prepared by introducing a carbonization reaction at the laser-induced Si plasma and ethanol interface (referred to as reactive laser ablation). An anomalous red spectral shift is observed when the diameter of SiC nanocrystals within the SiC quantum rings is smaller than 3 nm. Experimental results and theoretical calculations indicate that the observed anomalous red spectral shift is ascribed to the contributions from surface structures (e.g., surface composition, surface reconstruction, and exposed crystal planes).

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