Operation of a gated field emitter using an individual carbon nanofiber cathode
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    Jouranal articles		 The following article appeared in Applied Physics Letters -- November 19, 2001 -- Volume 79, Issue 21, pp. 3506-3508   and may be found at (URL/link for published article abstract).

(full text pdf)

Copyright (2005) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

M. A. Guillorn, A. V. Melechko, V. I. Merkulov, E. D. Ellis, C. L. Britton, M. L. Simpson, and D. H. Lowndes
Molecular-Scale Engineering and Nanoscale Technologies Research Group, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
University of Tennessee, Knoxville, Tennessee 37996
L. R. Baylor
Fusion Energy Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831

 

(Received 18 June 2001; accepted 10 September 2001)

We report on the operation of an integrated gated cathode device using a single vertically aligned carbon nanofiber as the field emission element. This device is capable of operation in a moderate vacuum for extended periods of time without experiencing a degradation of performance. Less than 1% of the total emitted current is collected by the gate electrode, indicating that the emitted electron beam is highly collimated. As a consequence, this device is ideal for applications that require well-focused electron emission from a microscale structure. ©2001 American Institute of Physics.