| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1678902 | Ultramicroscopy | 2007 | 5 Pages |
Abstract
Aging of the field emission performance of the printed carbon nanotubes (CNTs) cathode is studied. A continuous increase of the field emission current as well as the density of field emission sites under a constant voltage is observed. It is revealed that the resistant heating may play an important role in the activation of the potential emitters during the aging process. A technique of activating the printed CNT cathode with an aging process is suggested. F-N curves before and after the aging processes are analyzed and it is revealed that the effective emission area increases during the aging process.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Weihua Liu, Xin Li, Changchun Zhu,