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Laser Dispersion of Detonation Nanodiamonds

Authors

  • Kai-Yang Niu,

    1. Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072 (People's Republic of China), Fax: (+86) 22-2740-5694
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  • Dr. Hai-Mei Zheng,

    1. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (USA)
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  • Prof. Zhi-Qing Li,

    1. School of Sciences, Tianjin University, Tianjin 300072 (People's Republic of China)
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  • Dr. Jing Yang,

    1. Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072 (People's Republic of China), Fax: (+86) 22-2740-5694
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  • Prof. Jing Sun,

    1. Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072 (People's Republic of China), Fax: (+86) 22-2740-5694
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  • Prof. Dr. Xi-Wen Du

    Corresponding author
    1. Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072 (People's Republic of China), Fax: (+86) 22-2740-5694
    • Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072 (People's Republic of China), Fax: (+86) 22-2740-5694
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  • This work was supported by the Specialized Research Fund for the Doctoral Program of Higher Education (Nos. 200800560050 and 20090032120024), the Natural Science Foundation of China (Nos. 50902103 and 50972102), and the National High-tech R&D Program of China (Nos. 2007AA021808 and 2009AA03Z301).

Abstract

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Laser blasting: Complete dispersion of detonation nanodiamonds was realized by laser irradiation. The infrared laser could selectively destroy the agglomerant of detonation nanodiamonds (see picture), resulting in well-dispersed nanodiamonds in solution. The optical properties of nanodiamonds were modified by changing their surface ligands in situ.

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