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Patterned deposition and field emission properties of carbon nanotubes by electrophoresis

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6 Author(s)
Haifeng Zhao ; Changchun Inst. of Opt., Fine Mech. & Phys., China ; Hang Song ; Li, Zhiming ; Naikang Liu
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Multi-wall carbon nanotubes were deposited on the patterned silicon substrates using electrophoretic deposition. The surface images of carbon nanotubes on substrate were observed by scanning electron microscopy. Field emission properties have been tested with a diode structure in a vacuum chamber below 5×10-4 Pa. The emission area measured is 1.0mm. Emission current density up to 30mA/cm at an electric field of 8V/μm has been obtained. Patterned deposition of carbon nanotubes by electrophoresis is a potential method to prepare field emission arrays.

Published in:

Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International

Date of Conference:

6-10 Sept. 2004