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Field Emission Characteristics of Surface-treated CNT Emitter by Ar Ion Bombardment  

Kwon, Sang-Jik (Department of Electronics, Kyungwon University)
Publication Information
전자공학회논문지 IE / v.44, no.2, 2007 , pp. 26-31 More about this Journal
Abstract
A surface treatment was performed after the screen printing of a carbon nanotube paste for obtaining the carbon nanotube field emission array(CNT FEA) on the soda-lime glass substrate. In this experiment, Ar ion bombardment was applied as an effective surface treatment method. After making a cathode electrode on the glass substrate, photo sensitive CNT paste was screen-printed, and then back-side was exposure by uv light. Then, the exposed CNT paste was selectively remained by development. After post-baking, the remained CNT paste was bombarded by accelerated Ar ions for removing some binders and exposing only CNTs. As results, the field emission characteristics were strongly depended on the accelerating energy. At 100 eV, the emission was highest and as the acceleration energy increases more then 100 eV, the emission decreased. This was due to the removal of CNT itself as well as binders.
Keywords
carbon nanotube; field emission; Ar ion irradiation; surface treatment;
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