Acta Phys. -Chim. Sin. ›› 2007, Vol. 23 ›› Issue (04): 565-568.doi: 10.3866/PKU.WHXB20070422

• ARTICLE • Previous Articles     Next Articles

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

WANG Rui; XU Hua-Ming; LI Dan; LIANG Ji   

  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:2006-08-14 Revised:2006-11-13 Published:2007-04-05
  • Contact: LIANG Ji

Abstract: 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.

Key words: SWNTs, AFM, CVD, Probe


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