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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. 5 — May. 10, 2005
  • pp: 287–288

Preparation of nanodiamonds by laser irradiation of graphite

Jing Sun, Yiwen Lei, Qi Zhai, Xing Yang, Jing Yang, and Xiwen Du  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue 5, pp. 287-288 (2005)


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Abstract

Graphite powders were irradiated by pulsed laser at room temperature and normal pressure and then boiled in perchloric acid. Samples were characterized by high-resolution transmission electron microscopy (HRTEM), electron diffraction pattern (EDP), X-ray diffraction (XRD) pattern, and Raman spectroscopy. The analyses on the HRTEM images, EDP, and XRD show that the diamond particles with a size of about 5 nm are obtained. The shifting and broadening of the diamond peak in Raman spectrum indicate that there are high defect density and residual internal stress in synthetic diamond.

© 2005 Chinese Optics Letters

OCIS Codes
(300.2530) Spectroscopy : Fluorescence, laser-induced
(340.7460) X-ray optics : X-ray microscopy
(350.4990) Other areas of optics : Particles

Citation
Jing Sun, Yiwen Lei, Qi Zhai, Xing Yang, Jing Yang, and Xiwen Du, "Preparation of nanodiamonds by laser irradiation of graphite," Chin. Opt. Lett. 3, 287-288 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-5-287


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