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 language | English |
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Pages (from-to) | 39-42 |
Number of pages | 4 |
Journal | Applied Surface Science |
Volume | 256 |
Issue number | 1 |
DOIs | |
State | Published - 15 Oct 2009 |
Externally published | Yes |
Keywords
- Diamond-like carbon nanorods
- Field emission
- TiO nanotube arrays