Synthesis and field emission of diamond-like carbon nanorods on TiO 2 /Ti nanotube arrays

Jian Biao Chen, Cheng Wei Wang, Jian Wang, Yan Li, Rui Sheng Guo, Bao Hong Ma, Feng Zhou, Wei Min Liu

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Highly ordered TiO 2 /Ti nanotube arrays were fabricated by anodic oxidation method in 0.5 wt% HF. Using prepared TiO 2 /Ti nanotube arrays deposited Ni nanoparticles as substrate, high quality diamond-like carbon nanorods (DLCNRs) were synthesized by a conventional method of chemical vapor deposition at 750 °C in nitrogen atmosphere. DLCNRs were analyzed by filed emission scanning electron microscopy and Raman spectrometer. It is very interesting that DLCNRs possess pagoda shape with the length of 3-10 μm. Raman spectra show two strong peaks about 1332 cm -1 and 1598 cm -1 , indicating the formation of diamond-like carbon. The field emission measurements suggest that DLCNRs/TiO 2 /Ti has excellent field emission properties, a low turn-on field about 3.0 V/μm, no evident decay at 3.4 mA/cm 2 in 480 min.

Original languageEnglish
Pages (from-to)39-42
Number of pages4
JournalApplied Surface Science
Volume256
Issue number1
DOIs
StatePublished - 15 Oct 2009
Externally publishedYes

Keywords

  • Diamond-like carbon nanorods
  • Field emission
  • TiO nanotube arrays

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