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CARBONLETT, vol. 15, no. 3, pp.214-217, 2014

DOI: http://dx.doi.org/10.5714/CL.2014.15.3.214

Excellent field emission properties from carbon nanotube field emitters fabricated using a filtration-taping method

Dong Hoon Shin1, Seung Il Jung1, Ki Nam Yun1, Guohai Chen2, Seok-Gy Jeon3, Jung-Il Kim3 and Cheol Jin Lee1,♠

Affiliation: 1School of Electrical Engineering, Korea University, Seoul 136-713, Korea
2 National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8565, Japan
3Advanced Medical Device Research Center, Korea Electrotechnology Research Institute, Ansan 426-170, Korea

Abstract: A filtration-taping method was demonstrated to fabricate carbon nanotube (CNT) emitters. This method shows many good features, including high mechanical adhesion, good electrical contact, low temperature, organic-free, low cost, large size, and suitability for various CNT materials and substrates. These good features promise an advanced field emission performance with a turn-on field of 0.88 V/mm at a current density of 0.1 mA/cm2, a threshold field of 1.98 V/mm at a current density of 1 mA/cm2, and a good stability of over 20 h. The filtration-taping technique is an effective way to realize low-cost, large-size, and high-performance CNT emitters.

Keyword: field emission properties, carbon nanotube, filtration-taping method