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Synthesis, Structure, and Properties of Boron‐ and Nitrogen‐Doped Graphene

2009; Volume: 21; Issue: 46 Linguagem: Inglês

10.1002/adma.200901285

1521-4095

Leela S. Panchakarla, K. S. Subrahmanyam, Subhankar Saha, A. Govindaraj, H. R. Krishnamurthy, Umesh V. Waghmare, C. N. R. Rao,

Carbon Nanotubes in Composites

Boron- and nitrogen-doped graphenes are are prepared by the arc discharge between carbon electrodes or by the transformation of nanodiamond under appropriate atmospheres. Using a combination of experiment and theories based on first principles, systematic changes in the carrier-concentration and electronic structure of the doped graphenes are demonstrated. Stiffening of the G-band mode and intensification of the defect-related D-band in the Raman spectra are also observed.