Effects on Field Emission Characteristics of Ar Ion Bombardment for Screen-Printed Carbon Nanotube Emitters
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概要
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A surface treatment was performed after screen printing of a carbon nanotube paste for obtaining a carbon nanotube field emission array (CNT FEA) on a soda-lime glass substrate. In this experiment, Ar ion bombardment was applied as an effective surface treatment method. After forming a cathode electrode on the glass substrate, the photosensitive CNT paste was screen-printed. Then, the bottom surface was exposed to UV light. After that, the exposed CNT paste was selectively allowed to remain by development. After postbaking, the remaining CNT paste was bombarded with accelerated Ar ions to remove some binders and expose only the CNTs. As a result, the field emission characteristics were found to be strongly dependent on the accelerating energy. At 100 eV, emission current was highest and as acceleration energy increased to more then 100 eV, the emission current decreased. This was due to the removal of the CNTs as well as the binders.
- 2007-09-15
著者
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Kwon Sang
Department Of Chemistry Yeungnam University
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Kwon Sang
Department of Electronics Engineering, Kyungwon University, Seongnam, Kyunggido 461-701, Korea
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