산 처리를 이용한 탄소 나노튜브 투명전극 특성 향상

전주희; 최지혁; 문경주; 이태일; 문호준; 김형열; 명재민; Joohee Jeon; Ji-Hyuk Choi; Kyeong-Ju Moon; Tae Il Lee; Hojun Moon; Hyung Yeol Kim; Jae-Min Myoung

Korean Journal of Materials Research, Vol.20, No.2, 51-54, February, 2010

DOI10.3740/MRSK.2010.20.2.51 Export Citation

산 처리를 이용한 탄소 나노튜브 투명전극 특성 향상

Improved Characteristics of Carbon Nanotube Transparent Electrode Films Using Acid Treatments

전주희, 최지혁, 문경주, 이태일, 문호준¹, 김형열¹, 명재민^†

연세대학교 신소재공학부
¹주식회사 나노솔루션

Joohee Jeon, Ji-Hyuk Choi, Kyeong-Ju Moon, Tae Il Lee, Hojun Moon¹, Hyung Yeol Kim¹, and Jae-Min Myoung^†

Information and Electronic Materials Research Laboratory, Department of Materials Science and Engineering, Yonsei University, Korea
¹Nanosolution Co., Ltd., 729, Palbokdong, 2-ga, Jeonju-si, Korea

E-mail:

Transparent conductive films of single wall carbon nanotube (SWCNT) were prepared by spray coating method. The effect of acid treatment on the SWCNT films was investigated. The field emission scanning electron microscope (FESEM) shows that acid treatment can remove dispersing agent. The electrical and optical properties of acid-treated films were enhanced compared with those of as deposited SWCNT films. Nitric acid (HNO3), sulfuric acid (H2SO4), nitric acid:sulfuric acid (3:1) were used for post treatment. Although all solutions reduced sheet resistance of CNT films, nitric acid can improve electrical characteristics efficiently. During acid treatment, transmittance was increased continuously with time. But the sheet resistance was decreased for the first 20 minutes and then increased again. Post-treated SWCNT films were transparent (85%) in the visible range with sheet resistance of about 162 Ω/sq. In this paper we discuss simple fabrication, which is suitable for different types of large-scale substrates and simple processes to improve properties of SWCNT films.

Keywords:SWNTs;TCFs;acid treatment;transparent;HNO3

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[Referenced By]

[1] Lewis B, Paine D, MRS Bull., 25, 22 (2000)

[2] Saran N, Parikh K, Suh DS, Munoz E, Kolla H, Manohar SK, J. Am. Chem. Soc., 126(14), 4462 (2004)

[3] Cao Q, Zhu Z, Lemaitre M, Xia M, Shim M, Rogers J, Appl. Phys. Lett., 88(11), 113511 (2006)

[4] Iijima S, Nature, 354, 56 (1991)

[5] Kaempgen M, Duesberg GS, Roth S, Appl. Surf. Sci., 252(2), 425 (2005)

[6] Wu Z, Chen Z, Du X, Logan J, Sippel J, Nikolou M, Kamaras K, Reynolds J, Tanner DB, Hebard A, Rinzler A, Science, 305, 1273 (2004)

[7] Yim JH, Kim YS, Koh KH, Lee S, J. Vac. Sci. Technol. B, 26(2), 851 (2008)

[8] Ng MHA, Hartadi LT, Tan H, Poa CHP, Nanotechnology, 19, 205703 (2008)

[9] Meitl M, Zhou Y, Gaur A, Jeon S, Usrey M, Strano M, Rogers J, Nano Lett., 4(9), 1643 (2004)

[10] Wang J, Sun J, Gao L, Wang Y, Zhang J, Kajiura H, Li Y, Noda K, J. Phys. Chem. C, 113, 17685 (2009)

[11] Geng HZ, Kim KK, So KP, Lee YS, Chang Y, Lee YH, J. Am. Chem. Soc., 129(25), 7758 (2007)

[12] Graupner R, Abraham J, Vencelova A, Seyller T, Hennrich F, Kappes M, Hirsch A, Ley L, Phys. Chem. Chem. Phys., 5, 5472 (2003)

[13] Tantang H, Ong J, Loh C, Dong X, Chen P, Chen Y, Hu X, Tan L, Li L, Carbon, 47, 1867 (2009)

[14] Oh D, Kang Y, Jung H, Song H, Cho Y, Kim D, Korean J. Mater. Res., 19(9), 488 (2009)