The screening effects of carbon nanotube arrays and its field emission optimum density | Zendy

Dan Cai | Zendy; Lie Liu | Zendy

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The screening effects of carbon nanotube arrays and its field emission optimum density

Author(s) -

Dan Cai,

Lie Liu

Publication year - 2013

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4841275

Subject(s) - carbon nanotube , electric field , field electron emission , materials science , current density , screening effect , field (mathematics) , carbon nanotube quantum dot , nanotube , nanotechnology , optoelectronics , molecular physics , condensed matter physics , physics , electron , mathematics , quantum mechanics , pure mathematics

In order to investigate the field emission optimum density of carbon nanotube (CNT) array, the screening effects of CNT array have been studied. It has been shown that the electric field in the vicinity of an individual nanotube of array can be notable distorted due to the screening action of the surrounding neighbors. The optimum normalized spacing s/l(as referred to the length) for the maximum emission current is inversely proportional to aspect ratio l/r and electric field strength for CNT arrays with a fixed dimension

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