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Citation: WANG Rui, XU Hua-Ming, LI Dan, LIANG Ji. Growth of Single-walled Carbon Nanotubes on the Given Locations for AFM Tips[J]. Acta Physico-Chimica Sinica, ;2007, 23(04): 565-568. doi: 10.3866/PKU.WHXB20070422 shu

Growth of Single-walled Carbon Nanotubes on the Given Locations for AFM Tips

1.
Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P. R. China; Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China

Received Date: 14 August 2006
Available Online: 15 March 2007

An adhesive semisolid mixture was used as catalyst precursors for the synthesis of single-walled carbon nanotubes (SWNTs). With atomic forcemicroscopy (AFM),worn-out silicon probeswere driven to approach the glue-like catalyst precursors, followed by chemical vapor deposition (CVD). Thus SWNTs were successfully located on the end of silicon probes as AFM tips. The as-prepared SWNTs and tips were characterized, and the effect of SWNT morphology on imaging stabilization was discussed. The results showed that most of tips were SWNT bundles, which were 5-10 nm in diameter, several hundred nanometers in length and independent of severe thermal vibration. When SWNTs were parallel to the axis of silicon pyramids, the tips could obtain high-resolution images without additional treatments.
- SWNTs; AFM; CVD; Probe
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