All-Carbon Nanotube-Based Flexible Field-Emission Devices: From Cathode to Anode
- Authors
- Jeong, Hee Jin; Jeong, Hae Deuk; Kim, Ho Young; Kim, Jun Suk; Jeong, Seung Yol; Han, Joong Tark; Bang, Dae Suk; Lee, Geon-Woong
- Issue Date
- 22-Apr-2011
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- ADVANCED FUNCTIONAL MATERIALS, v.21, no.8, pp 1526 - 1532
- Pages
- 7
- Journal Title
- ADVANCED FUNCTIONAL MATERIALS
- Volume
- 21
- Number
- 8
- Start Page
- 1526
- End Page
- 1532
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/26891
- DOI
- 10.1002/adfm.201001469
- ISSN
- 1616-301X
1616-3028
- Abstract
- The fabrication of a flexible field-emission device (FED) using single-walled carbon nanotube (SWNT) network films as the conducting electrodes (anode and cathode) and thin multi-walled CNT/TEOS hybrid films as the emitters is reported. P-type doping with gold ions and passivation with tetraethylorthosilicate (TEOS) made the SWNT network film highly conductive and environmentally stable, and hence a good alternative to conventional indium tin oxide electrodes. CNT/TEOS hybrid emitters showed high current density, low turn-on field, and long-term emission stability, compared with CNT emitters; these characteristics can be attributed to the TEOS sol, acting both as a protective layer surrounding the nanotube tip, and as an adhesive layer enhancing the nanotube adhesion to the substrate. All-CNT-based flexible FEDs fabricated by this approach showed high flexibility in field emission characteristics and extremely bright electron emission patterns.
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