Figure 1.

FESEM morphology and TEM images of N₂-UNCD nanorods. (a) FESEM morphology of the N₂-UNCD nanorods, which are fabricated from N₂-UNCD films grown using N₂ (94%)/CH₄ (6%) plasma at 700°C, using RIE etching process with nanodiamond particles as masking materials. (b) High resolution TEM image of N₂-UNCD nanorod with the upper-right inset showing the low magnification TEM image of N₂-UNCD nanorod and the corresponding SAED pattern. The insets 1 and 2 show the Fourier-transformed diffractogram (FT images) of the areas marked as 1 and 2, indicating that the UNCD nanorods are encased in a thin shell of graphite content of around 2 to 3 nm thickness. d, diamond; g, graphite.