CVD법으로 제조한 탄소 나노튜브의 전계 전자 방출 특성

이임렬; Rhim Youl Lee

Korean Journal of Materials Research, Vol.13, No.7, 424-428, July, 2003

DOI10.3740/MRSK.2003.13.7.424 Export Citation

CVD법으로 제조한 탄소 나노튜브의 전계 전자 방출 특성

Properties of Field Emission Electrons for CVD-grown Carbon Nanotubes

이임렬^†

단국대학교 신소재공학

Rhim Youl Lee^†

Department of New Materials Engineering, Dankook University, Korea

E-mail:

The microstructure and field emission properties of carbon nanotubes(CNT) grown by Ni-catalytic chemical vapor deposition(CVD) were investigated. CVD-grown CNT had a high density of curved shape with randomly oriented. It was found that an increase in electric field caused an increase in field emission current and field emission sites of CNT. The maximum field emission current density was measured to be 3.6 ㎃/ at 2.5 V/, while the brightness of 56 cd/ was observed for the CNT-grown area of 0.8 from a phosphor screen. Field emission current at constant electric field gradually decreased initially and then stabilized with time.

Keywords:carbon nanotube;field emission;current density;field enhancement factor;brightness;stability

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[3] Fan SS, Chapline MG, Franklin NR, Tombler TW, Cassell AM, Dai HJ, Science, 283(5401), 512 (1999)

[4] Yudasaka M, Kasuya Y, Kokai F, Takahashi K, Takizawa M, Bandow S, Iijima S, Appl. Phys. Lett., 74, 377 (2002)

[5] Sveningsson M, Morjan RE, Nerushev OA, Sato Y, Backstrom J, Compell EEB, Rohmund F, Appl. Phys. A., 73, 409 (2001)

[6] Chen Y, Shaw DT, Guo L, Appl. Phys. Lett., 76, 2469 (2000)

[7] Ajayan PM, Carbon Nanotubes, p. 111, CRT, New York, USA (1977) (1977)

[8] Wang YH, Lin J, Huan CHA, Thin Solid Films, 405(1-2), 243 (2002)

[9] Bonard JM, Salvetat JP, Stockli T, De Heer WA, Forro L, Chatelain A, Appl. Phys. Lett., 73, 918 (1998)

[10] Fowler RH, Nordheim L, Proc. R. Soc. Lond. Ser. A, 119, 173 (1928)

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[12] Barbour JP, Dolan WW, Trolan JK, Martin EE, Dyke WP, Phys. Rev., 92, 45 (1953)

[13] Kim JM, Chol WB, Lee NS, Jung JE, Diamond & Related Materials, 9, 1184 (2000)

[14] Amartunga GAJ, Silva SRP, Appl. Phys. Lett., 68, 2529 (1996)

[15] Dean KA, Chalamala BR, Appl. Phys. Lett., 75, 3017 (1999)