Self-organized regular arrays of carbon nanocones induced by ultrashort laser 
pulses and their field emission properties

Zhao, Q. Z.; Ciobanu, F.; Wang, L. J.

doi:10.1063/1.3097391

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Self-organized regular arrays of carbon nanocones induced by ultrashort laser pulses and their field emission properties

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Wang, L. J.
Max Planck Fellow Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Zhao, Q. Z., Ciobanu, F., & Wang, L. J. (2009). Self-organized regular arrays of carbon nanocones induced by ultrashort laser pulses and their field emission properties. JOURNAL OF APPLIED PHYSICS, 105(8): 083103. doi:10.1063/1.3097391.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6BEB-1

Abstract

Periodic, self-organized carbon nanocone structures with a spatial period of up to 170 nm (less than 1/5 laser wavelength) are induced by exposing a graphite surface to a single beam 800 nm ultrashort pulsed laser. When a linearly polarized laser beam is used, the nanocones are aligned perpendicularly to the direction of polarization. This paper also demonstrates the fabrication of large-area carbon nanocone structures. The resulting carbon nanocones show a field emission performance with a turn-on electric field of as low as 3.2 V/mu m.