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Browse Journals & Magazines > Journal of Vacuum Science & T ...> Volume:20 Issue:6 Help

Beam-focusing characteristics of the diamond-film field emission arrays with parallel emitter, gates, and in-plane lens

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5 Author(s)
Zeng, Baoqing ; Institute of High Energy Electronics, University of Electronic Science and Technology of China, Chengdu 610054, People’s Republic of ChinaSouthwestern Institute of Physics, Chengdu 610041, People’s Republic of China ; Yang Liu ; Zhonghai Yang ; Qian, Shangjie
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1116/1.1518970 

A focusing structure of field-emission arrays (FEAs) made of a parallel planar emitter, gate, and in-plane lens is suggested. Using the particle-in-cell simulation code MAGIC, the diamond-film FEAs made of a strip planar emitter, a parallel gate, and an anode with and without an in-plane lens have been simulated. The electron-beam streamlines and the x-py phase show that the in-plane lens focuses the electron beam. For a typical model, the beam width decreases about 1/10 for every cell, and the transverse velocity decreases from ±5.5×106 to ±0.4×106 m/s when including the in-plane lens. This structure can be used as a moderated field-emission cathode to emit a collimated electron beam, such as in field-emission displays. © 2002 American Vacuum Society.

Published in:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures  (Volume:20 ,  Issue: 6 )

Date of Publication: Nov 2002

Page(s):
2271 - 2274
ISSN :
1071-1023
Digital Object Identifier :
10.1116/1.1518970
Date of Current Version :
18 June 2009
Issue Date :
Nov 2002

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