Improved characteristics of carbon nanotube transparent electrode films using acid treatments

Joohee Jeon; Ji Hyuk Choi; Kyeong Ju Moon; Tae Il Lee; Hojun Moon; Hyung Yeol Kim; Jae Min Myoung

doi:10.3740/MRSK.2010.20.2.51

Improved characteristics of carbon nanotube transparent electrode films using acid treatments

Joohee Jeon, Ji Hyuk Choi, Kyeong Ju Moon, Tae Il Lee, Hojun Moon, Hyung Yeol Kim, Jae Min Myoung

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	51-54
Number of pages	4
Journal	Korean Journal of Materials Research
Volume	20
Issue number	2
DOIs	https://doi.org/10.3740/MRSK.2010.20.2.51
Publication status	Published - 2010 Feb

All Science Journal Classification (ASJC) codes

Materials Science(all)

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10.3740/MRSK.2010.20.2.51

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title = "Improved characteristics of carbon nanotube transparent electrode films using acid treatments",

abstract = "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.",

author = "Joohee Jeon and Choi, {Ji Hyuk} and Moon, {Kyeong Ju} and Lee, {Tae Il} and Hojun Moon and Kim, {Hyung Yeol} and Myoung, {Jae Min}",

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doi = "10.3740/MRSK.2010.20.2.51",

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AU - Jeon, Joohee

AU - Choi, Ji Hyuk

AU - Moon, Kyeong Ju

AU - Lee, Tae Il

AU - Moon, Hojun

AU - Kim, Hyung Yeol

AU - Myoung, Jae Min

PY - 2010/2

Y1 - 2010/2

N2 - 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.

AB - 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.

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Improved characteristics of carbon nanotube transparent electrode films using acid treatments

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