Figure 2: Structure characterizations of the anchored SWNTs grown on graphite. | Nature Communications

Figure 2: Structure characterizations of the anchored SWNTs grown on graphite.

From: Helicity-dependent single-walled carbon nanotube alignment on graphite for helical angle and handedness recognition

Figure 2

(a) The typical AFM image of a self-organized SWNT with a turning angle of 120° and an angle of 69.8o from the etched trench on a graphite surface. (b) Two anchored SWNTs grown from 13C-labelled CH4 (one is straight and the other one changes its orientation twice). (c,d) Raman mapping results with radial breathing mode (c) and G (d) bands of the turned SWNT in b. Scale bars in a–d, 1 μm. (e) Histograms of turning angles of the grown SWNTs. (f–h) Atomically resolved STM images of the zigzag (f), chiral (g) and armchair (h) SWNTs on graphite surface. The arrows indicate the benzene ring arrangements (along zigzag edge) of SWNT upper parts (solid lines) and the graphite surface (dot lines).

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