Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Effect of Nano-Sized Silver Powders in CNT Paste on Field Emission Characteristics of Carbon Nanotube Cathode

탄소나노튜브 캐소드의 전계방출 특성에 미치는 CNT 페이스트용 나노입자 은분말의 영향

  • An, Young-Je (Div. of Materials Science and Engineering, Pusan National University) ;
  • Lee, Ji-Eon (Div. of Materials Science and Engineering, Pusan National University) ;
  • Shin, Heon-Cheol (Div. of Materials Science and Engineering, Pusan National University) ;
  • Cho, Young-Rae (Div. of Materials Science and Engineering, Pusan National University)
  • Published : 2008.01.31
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Abstract

Carbon nanotube (CNT) cathodes were fabricated using nano-sized silver (Ag) powders as a bonding material between the CNTs and cathode electrodes. The effects of the powder size on the sintering behavior, the current density and emission image for CNT cathodes were investigated. As the diameter of the Ag powders decreases to 10 nm, the sintering temperature of the CNT cathode was lowered primarily due to the higher specific surface area of the Ag powders. In this study, it was demonstrated that nano-sized Ag powders can be feasibly used as a bonding material for a screen-printed CNT cathode, yielding a high current density and a uniform emission image.

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References

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