Angular field emission (FE) properties of vertically aligned carbon nanotube arrays have been measured on samples grown by plasma enhanced chemical vapor deposition and characterized by scanning electron microscope and I-V measurements. These properties determine the angular divergence of electron beams, a crucial parameter in order to obtain high brilliance FE based cathodes. From angular distributions of the electron beam transmitted through extraction grids of different mesh size and by using ray-tracing simulations, the maximum emission angle from carbon nanotube tips has been determined to be about +/- 30 degrees around the tube main axis. (C) 2012 American Institute of Physics. [doi:10.1063/1.3681398]

Iacobucci, S., Fratini, M., Rizzo, A., Scarinci, F., Zhang, Y., Mann, M., et al. (2012). Angular distribution of field emitted electrons from vertically aligned carbon nanotube arrays. APPLIED PHYSICS LETTERS, 100(5) [10.1063/1.3681398].

Angular distribution of field emitted electrons from vertically aligned carbon nanotube arrays

FRATINI, MICHELA;STEFANI, Giovanni
2012-01-01

Abstract

Angular field emission (FE) properties of vertically aligned carbon nanotube arrays have been measured on samples grown by plasma enhanced chemical vapor deposition and characterized by scanning electron microscope and I-V measurements. These properties determine the angular divergence of electron beams, a crucial parameter in order to obtain high brilliance FE based cathodes. From angular distributions of the electron beam transmitted through extraction grids of different mesh size and by using ray-tracing simulations, the maximum emission angle from carbon nanotube tips has been determined to be about +/- 30 degrees around the tube main axis. (C) 2012 American Institute of Physics. [doi:10.1063/1.3681398]
2012
Iacobucci, S., Fratini, M., Rizzo, A., Scarinci, F., Zhang, Y., Mann, M., et al. (2012). Angular distribution of field emitted electrons from vertically aligned carbon nanotube arrays. APPLIED PHYSICS LETTERS, 100(5) [10.1063/1.3681398].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/116039
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