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Direct growth of carbon nanotubes on a micro-sized cobalt tip and characterization of electron-emission properties
- Authors
- Kim, Jong-Pil; Kim, Young-Kwang; Park, Chang-Kyun; Choi, Hae-Young; Kim, Jong-Uk; Park, Jin-Seok
- Issue Date
- Dec-2008
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Carbon nanotubes (CNTs); Cobalt tip; Direct growth; Electron-emission properties; Stability; X-ray imaging; Inductively coupled plasma- Chemical vapor deposition (ICP-CVD)
- Citation
- THIN SOLID FILMS, v.517, no.3, pp 1136 - 1140
- Pages
- 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- THIN SOLID FILMS
- Volume
- 517
- Number
- 3
- Start Page
- 1136
- End Page
- 1140
- ISSN
- 0040-6090
- Abstract
- Carbon nanotubes (CNTs) are synthesized directly on an electrically conducting cobalt (Co) tip of 1 mu m in diameter, without any additional buffer or catalyst layer, through inductively coupled plasma-chemical vapor deposition (ICP-CVD). The nanostructures, morphologies, and crystalline structures of all the CNTs are analyzed through field emission SEM, high-resolution TEM, and Raman spectroscopy. Compared with the conventional emitter, which has a configuration of CNTs/Co(catalyst)/TiN(buffer)/W-tip, the CNTs/Co-tip field emitter proposed in this work show a noticeably improved performance in the electron-emission characteristics as well as in the stability of the emission current due to prolonged operation (up to 50 h). (C) 2008 Elsevier B.V. All rights reserved.
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Related Researcher
- PARK, JIN SEOK
- ERICA 공학대학 (SCHOOL OF ELECTRICAL ENGINEERING)