Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2008.11a
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- Pages.353-353
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- 2008
Fabrication of Transparent Ultra-thin Single-walled Carbon Nanotube Films for Field Emission Applications
- Jang, Eun-Soo (Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University) ;
- Goak, Jung-Choon (Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University) ;
- Lee, Han-Sung (Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University) ;
- Kim, Myoung-Su (Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University) ;
- Lee, Nae-Sung (Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University)
- Published : 2008.11.06
Abstract
Carbon nanotubes (CNTs) are attractive for field emitter because of their outstanding electrical, mechanical, and chemical properties. Several applications using CNTs as field emitters have been demonstrated such as field emission display (FED), backlight unit (BLU), and X-ray source. In this study, we fabricated a CNT cathode using transparent ultra-thin CNT film. First, CNT aqueous solution was prepared by ultrasonically dispersing purified single-walled carbon nanotubes (SWCNTs) in deionized water with sodium dodecyl sulfate (SDS). To obtain the CNT film, the CNT solution in a milliliter or even several tens of micro-litters was deposited onto a porous alumina membrane through vacuum filtration process. Thereafter, the alumina membrane was solvated by the 3 M NaOH solution and the floating CNT film was easily transferred to an indium-tin-oxide (ITO) glass substrate of