| Citation: |
Zheng Longwu, Hu Liqin, Yang Fan, Guo Tailiang. Improvement of the field emission properties of carbon nanotubes by CNT/Fe3O4 composite electrophoretic deposition[J]. Journal of Semiconductors, 2011, 32(12): 126001. doi: 10.1088/1674-4926/32/12/126001
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Zheng L W, Hu L Q, Yang F, Guo T L. Improvement of the field emission properties of carbon nanotubes by CNT/Fe3O4 composite electrophoretic deposition[J]. J. Semicond., 2011, 32(12): 126001. doi: 10.1088/1674-4926/32/12/126001.
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Improvement of the field emission properties of carbon nanotubes by CNT/Fe3O4 composite electrophoretic deposition
doi: 10.1088/1674-4926/32/12/126001
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Abstract
A simple CNT/Fe3O4 composite electrophoretic deposition method to improve the field emission cathode properties of carbon nanotubes (CNTs) is proposed. It is found that CNT/Fe3O4 composite electrophoretic deposition leads to better field emission performance than that of single CNT electrophoretic deposition. The result is investigated using SEM, J-E and FE. After the process, the turn-on electric field decreases from 0.882 to 0.500 V/μm at an emission current density of 0.1 mA/cm2, and the latter increases from 0.003 to 1.137 mA/cm2 at an electric field of 0.64 V/μm. CNT/Fe3O4 composite electrophoretic deposition is an easy and effective cathode preparation for field emission display applications.-
Keywords:
- carbon nanotubes,
- Fe3O4,
- field emission,
- electrophoretic deposition,
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References
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