53.2: Characteristics of Field Emission from Printed Carbon Nanotubes by Physical Surface Treatments

Lee, Yang Doo; Lee, Hyeon Jae; Kim, Jai Kyeong; Lee, Yun Hi; Hwang, Sangwon; Nahm, Sahn; Ju, Byeong Kwon

doi:10.1889/1.2036322

Cited by 1 publication

(1 citation statement)

References 9 publications

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“…[6][7][8][9] CNT를 이용하여 전계방출 소자로 적용하여 상용화 하기 위해서는 우선적으로 전계(electric field)집중으로 인한 국 부적인 전자 방출, 아웃개싱(out-gassing), 에미터와 기판 과의 약한 결합력(adhesion force) 등을 피하기 위한 재 료 및 공정이 선택되어야 하며, 최적화된 전기적인 에이 징(electrical aging) 공정이 수반되어야 한다. [10][11][12][13][14] 기존의 에미터 형성 방법으로는 CVD를 이용한 직접 성 장법(direct-growth method), CNT 페이스트(paste)를 이용한 스크린 인쇄법(screen printing method), 분산 처리된 CNT 용액을 이용한 분사법(spray method)등이 사용되고 있다. Fig.…”

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Effect of Surface Morphology and Adhesion Force on the Field Emisson Properties ofCarbon Nanotube Based Cathode

Jung¹,

Cho²,

Kang³

et al. 2008

Korean. J. Mater. Res.

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The effects of the field emission property in relation to the surface morphology and adhesion force were investigated. The single-wall-nanotube-based cathode was obtained by use of an in-situ arc discharge synthesis method, a screen-printing method and a spray method. The morphologies of the formed emitter layers were very different. The emission stability and uniformity were dramatically improved by employing an in-situ arc discharge synthesis method. In this study, it was confirmed that the current stability and uniformity of the field emission of the cathode depend on the surface morphology and adhesion force of the emitters. The current stability of the field emission device was also studied through an electrical aging process by varying the current and electric field.Key words single walled carbon nanotube, field emission, surface morphology, adhesion force, electrical aging.

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